first

2026-09-12 00:19:44 +03:30
commit 1c0ea46bdd
20 changed files with 1176 additions and 0 deletions
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.16/apache-maven-3.9.16-bin.zip
--- a/CALLBACK-CONFIG.md
+++ b/CALLBACK-CONFIG.md
@@ -0,0 +1,110 @@
+# راهنمای تنظیمات Callback AGI
+
+تمام تنظیمات اجرای برنامه در فایل
+[`src/main/resources/application.properties`](src/main/resources/application.properties)
+قرار دارد. این AGI به هیچ پارامتر خط فرمانی نیاز ندارد.
+
+## تنظیمات اصلی برنامه
+
+| پارامتر | توضیح |
+|---|---|
+| `spring.application.name` | نام برنامه Spring است. |
+| `spring.main.web-application-type` | برنامه را در حالت غیر وب اجرا می‌کند، چون این پروژه یک AGI برای Asterisk است. |
+| `debug` | حالت debug مربوط به Spring Boot را فعال یا غیرفعال می‌کند. |
+
+## تنظیمات لاگ
+
+| پارامتر | توضیح |
+|---|---|
+| `logging.level.root` | سطح پیش‌فرض لاگ‌های برنامه. |
+| `logging.level.org.springframework` | سطح لاگ Spring Framework و Spring Boot. |
+| `logging.level.org.hibernate` | سطح لاگ Hibernate و JPA. |
+| `logging.level.com.zaxxer.hikari` | سطح لاگ connection pool مربوط به HikariCP. |
+
+## تنظیمات دیتابیس و JPA
+
+| پارامتر | توضیح |
+|---|---|
+| `spring.datasource.url` | آدرس اتصال JDBC به PostgreSQL. |
+| `spring.datasource.username` | نام کاربری PostgreSQL. |
+| `spring.datasource.password` | رمز عبور PostgreSQL. |
+| `spring.datasource.hikari.maximum-pool-size` | حداکثر تعداد connectionهای موجود در pool. |
+| `spring.datasource.hikari.connection-timeout` | حداکثر زمان انتظار برای گرفتن connection از pool، برحسب میلی‌ثانیه. |
+| `spring.jpa.hibernate.ddl-auto` | نحوه مدیریت schema دیتابیس. مقدار `none` مانع تغییر schema موجود توسط Hibernate می‌شود. |
+| `spring.jpa.open-in-view` | باز نگه داشتن EntityManager در لایه وب. برای این پروژه غیرفعال است، چون برنامه وب نیست. |
+| `spring.jpa.properties.hibernate.jdbc.time_zone` | منطقه زمانی مورد استفاده JDBC و Hibernate برای timestampها. |
+
+## تنظیمات Asterisk و IVR
+
+| پارامتر | توضیح |
+|---|---|
+| `callback.agi.dial-prefix` | پیشوند کانال برای تماس با داخلی کارمند؛ مانند `PJSIP/` یا `SIP/`. |
+| `callback.agi.dial-timeout-seconds` | مدت زمان زنگ خوردن داخلی برحسب ثانیه. |
+| `callback.agi.ivr-context` | نام context مربوط به IVR اصلی در dialplan. |
+| `callback.agi.ivr-extension` | extension مقصد در context مربوط به IVR. برای تماس ورودی معمولاً `s` است. |
+| `callback.agi.ivr-priority` | priorityای که اجرای IVR از آن شروع می‌شود. |
+
+در شرایط زیر تماس به IVR منتقل می‌شود:
+
+- قابلیت callback غیرفعال باشد.
+- callback مناسبی برای مشتری پیدا نشود.
+- داخلی پاسخ ندهد.
+- در جست‌وجو یا اتصال به دیتابیس خطایی رخ دهد.
+
+مقصد IVR از ترکیب سه مقدار زیر ساخته می‌شود:
+
+```text
+callback.agi.ivr-context,callback.agi.ivr-extension,callback.agi.ivr-priority
+```
+
+با تنظیمات فعلی، مقصد تماس این است:
+
+```text
+from-trunk,s,1
+```
+
+اگر context شما مثلاً `company-ivr` است، مقدار زیر را تغییر دهید:
+
+```properties
+callback.agi.ivr-context=company-ivr
+```
+
+## تنظیمات رفتار Callback
+
+| پارامتر | توضیح |
+|---|---|
+| `callback.agi.enabled` | فعال یا غیرفعال بودن callback. اگر `false` باشد، همه تماس‌ها مستقیماً به IVR می‌روند و جدول `tbl_cdr` بررسی یا تغییر داده نمی‌شود. |
+| `callback.agi.lookback-minutes` | بازه جست‌وجوی تماس‌های خروجی ناموفق برحسب دقیقه. مقدار `60` یعنی یک ساعت. |
+| `callback.agi.claim-value` | مقدار موقت ستون `tbl_cdr.target` هنگام شروع callback. این مقدار برای قفل هم‌زمانی استفاده می‌شود. |
+| `callback.agi.done-value` | مقدار نهایی ستون `tbl_cdr.target` بعد از پاسخ داخلی. پس از آن، تماس بعدی همان مشتری به IVR می‌رود. |
+
+## نمونه تنظیمات
+
+### فعال بودن Callback برای یک ساعت گذشته
+
+```properties
+callback.agi.enabled=true
+callback.agi.lookback-minutes=60
+```
+
+### غیرفعال کردن کامل Callback
+
+```properties
+callback.agi.enabled=false
+```
+
+در این حالت تمام تماس‌ها بدون جست‌وجوی callback به IVR می‌روند.
+
+### استفاده از IVR متفاوت
+
+```properties
+callback.agi.ivr-context=my-ivr
+callback.agi.ivr-extension=s
+callback.agi.ivr-priority=1
+```
+
+### تغییر بازه جست‌وجو به ۳۰ دقیقه
+
+```properties
+callback.agi.lookback-minutes=30
+```
--- a/README.md
+++ b/README.md
@@ -0,0 +1,55 @@
+# Callback AGI
+
+این پروژه یک AGI برای Asterisk است که قبل از IVR، آخرین تماس خروجی ناموفق
+به مشتری را در یک ساعت گذشته پیدا می‌کند. رکورد با مقدار `target = 'pending'`
+به‌صورت اتمیک قفل می‌شود؛ در صورت پاسخ داخلی، مقدار آن به `callback_done`
+تغییر می‌کند و در غیر این صورت قفل آزاد شده و تماس به IVR می‌رود.
+
+## ساخت و نصب
+
+```bash
+./mvnw package
+install -m 0755 scripts/callback-agi /var/lib/asterisk/agi-bin/callback-agi
+```
+
+مسیر JAR را با متغیر `CALLBACK_AGI_JAR` تنظیم کنید. اسکریپت باید در نقطه ورود
+تماس ورودی به‌عنوان AGI موجود نصب شود؛ خود پروژه نیازی به تغییر dialplan ندارد.
+
+برای اجرای محلی از ریشه پروژه، wrapper به‌صورت خودکار JAR داخل `target/` را
+پیدا می‌کند:
+
+```bash
+./mvnw clean package
+printf 'agi_callerid: 09121234567\nagi_dnid: 02112345678\n\n' | ./scripts/callback-agi
+```
+
+این برنامه یک AGI غیر وب است و بدون آرگومان اجرا می‌شود. برنامه ورودی AGI را
+از stdin می‌خواند و تنظیمات آن از `application.properties` خوانده می‌شوند.
+
+```bash
+./mvnw spring-boot:run
+```
+
+## تنظیمات
+
+تمام تنظیمات در فایل
+[`CALLBACK-CONFIG.md`](CALLBACK-CONFIG.md) مستند شده‌اند.
+مقادیر را مستقیماً در `src/main/resources/application.properties` تغییر دهید.
+
+مقدار `agi_callerid` نرمال می‌شود؛ پیشوندهای `+98`، `0098` و صفر ابتدایی،
+فاصله و خط تیره حذف می‌شوند. `agi_dnid` برای ثبت رکورد لازم نیست و برای
+تطبیق callback عمداً استفاده نمی‌شود.
+
+## نکات دیتابیس
+
+برای سرعت lookup، در صورت امکان migration زیر را اجرا کنید:
+
+```sql
+CREATE INDEX IF NOT EXISTS idx_callback_lookup
+ON tbl_cdr (real_dst, calldate DESC)
+WHERE direction_call = 'outbound'
+  AND disposition IN ('NO ANSWER', 'BUSY', 'FAILED');
+```
+
+ستون `target` باید nullable باشد. نام و رمز عبور دیتابیس را در source code
+قرار ندهید.
--- a/295
+++ b/295
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.4
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+  if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+    actualDistributionDir="$distributionUrlNameMain"
+  fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+  # enable globbing to iterate over items
+  set +f
+  for dir in "$TMP_DOWNLOAD_DIR"/*; do
+    if [ -d "$dir" ]; then
+      if [ -f "$dir/bin/$MVN_CMD" ]; then
+        actualDistributionDir="$(basename "$dir")"
+        break
+      fi
+    fi
+  done
+  set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+  verbose "Contents of $TMP_DOWNLOAD_DIR:"
+  verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+  die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
--- a/mvnw.cmd
+++ b/mvnw.cmd
@@ -0,0 +1,189 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.4
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+
+$MAVEN_M2_PATH = "$HOME/.m2"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
+}
+
+if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
+    New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
+}
+
+$MAVEN_WRAPPER_DISTS = $null
+if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
+  $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
+} else {
+  $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
+}
+
+$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+$actualDistributionDir = ""
+
+# First try the expected directory name (for regular distributions)
+$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
+$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
+if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
+  $actualDistributionDir = $distributionUrlNameMain
+}
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if (!$actualDistributionDir) {
+  Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
+    $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
+    if (Test-Path -Path $testPath -PathType Leaf) {
+      $actualDistributionDir = $_.Name
+    }
+  }
+}
+
+if (!$actualDistributionDir) {
+  Write-Error "Could not find Maven distribution directory in extracted archive"
+}
+
+Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
--- a/pom.xml
+++ b/pom.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>4.1.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>ir.peeco.</groupId>
+	<artifactId>callback</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name/>
+	<description/>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>17</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-jdbc</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
--- a/scripts/callback-agi
+++ b/scripts/callback-agi
@@ -0,0 +1,13 @@
+#!/bin/sh
+set -eu
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+JAR_PATH="${CALLBACK_AGI_JAR:-$SCRIPT_DIR/../target/callback-0.0.1-SNAPSHOT.jar}"
+
+if [ ! -f "$JAR_PATH" ]; then
+    echo "Callback AGI JAR not found: $JAR_PATH" >&2
+    echo "Set CALLBACK_AGI_JAR to the absolute path of the packaged JAR." >&2
+    exit 1
+fi
+
+exec java -jar "$JAR_PATH"
--- a/src/main/java/ir/peeco/callback/CallbackApplication.java
+++ b/src/main/java/ir/peeco/callback/CallbackApplication.java
@@ -0,0 +1,16 @@
+package ir.peeco.callback;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.Banner;
+
+@SpringBootApplication
+public class CallbackApplication {
+
+	public static void main(String[] args) {
+		SpringApplication application = new SpringApplication(CallbackApplication.class);
+		application.setBannerMode(Banner.Mode.OFF);
+		application.run(args);
+	}
+
+}
--- a/src/main/java/ir/peeco/callback/agi/CallbackAgi.java
+++ b/src/main/java/ir/peeco/callback/agi/CallbackAgi.java
@@ -0,0 +1,122 @@
+package ir.peeco.callback.agi;
+
+import ir.peeco.callback.service.CallbackCandidate;
+import ir.peeco.callback.service.CallbackService;
+import ir.peeco.callback.service.PhoneNumberNormalizer;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.dao.DataAccessException;
+import org.springframework.stereotype.Component;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.util.HashMap;
+import java.util.Map;
+
+@Component
+public class CallbackAgi implements CommandLineRunner {
+    private static final Logger LOGGER = LoggerFactory.getLogger(CallbackAgi.class);
+    private final CallbackService callbackService;
+    private final String dialPrefix;
+    private final int dialTimeoutSeconds;
+    private final String ivrContext;
+    private final String ivrExtension;
+    private final int ivrPriority;
+    private final boolean enabled;
+
+    public CallbackAgi(
+            CallbackService callbackService,
+            @Value("${callback.agi.dial-prefix:PJSIP/}") String dialPrefix,
+            @Value("${callback.agi.dial-timeout-seconds:20}") int dialTimeoutSeconds,
+            @Value("${callback.agi.ivr-context:from-trunk}") String ivrContext,
+            @Value("${callback.agi.ivr-extension:s}") String ivrExtension,
+            @Value("${callback.agi.ivr-priority:1}") int ivrPriority,
+            @Value("${callback.agi.enabled:true}") boolean enabled) {
+        this.callbackService = callbackService;
+        this.dialPrefix = dialPrefix;
+        this.dialTimeoutSeconds = dialTimeoutSeconds;
+        this.ivrContext = ivrContext;
+        this.ivrExtension = ivrExtension;
+        this.ivrPriority = ivrPriority;
+        this.enabled = enabled;
+    }
+
+    @Override
+    public void run(String... args) throws Exception {
+        execute(System.in, System.out);
+    }
+
+    void execute(java.io.InputStream input, java.io.OutputStream output) throws IOException {
+        BufferedReader reader = new BufferedReader(new InputStreamReader(input));
+        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(output));
+        Map<String, String> environment = readEnvironment(reader);
+        String customerNumber = PhoneNumberNormalizer.normalize(environment.get("agi_callerid"));
+
+        if (customerNumber.isEmpty()) {
+            gotoIvr(writer, reader);
+            return;
+        }
+
+        if (!enabled) {
+            gotoIvr(writer, reader);
+            return;
+        }
+
+        CallbackCandidate candidate;
+        try {
+            candidate = callbackService.claim(customerNumber).orElse(null);
+        } catch (DataAccessException exception) {
+            LOGGER.error("Callback lookup failed; continuing to the IVR", exception);
+            gotoIvr(writer, reader);
+            return;
+        }
+        if (candidate == null || candidate.src() == null || candidate.src().isBlank()) {
+            gotoIvr(writer, reader);
+            return;
+        }
+
+        command(writer, reader,
+                "EXEC Dial " + dialPrefix + candidate.src() + "," + dialTimeoutSeconds);
+        String dialStatus = command(writer, reader, "GET VARIABLE DIALSTATUS");
+        if (dialAnswered(dialStatus)) {
+            callbackService.markDone(candidate.id());
+        } else {
+            callbackService.release(candidate.id());
+            gotoIvr(writer, reader);
+        }
+    }
+
+    private Map<String, String> readEnvironment(BufferedReader reader) throws IOException {
+        Map<String, String> environment = new HashMap<>();
+        String line;
+        while ((line = reader.readLine()) != null && !line.isEmpty()) {
+            int separator = line.indexOf(':');
+            if (separator > 0) {
+                environment.put(line.substring(0, separator), line.substring(separator + 1).trim());
+            }
+        }
+        return environment;
+    }
+
+    private void gotoIvr(BufferedWriter writer, BufferedReader reader) throws IOException {
+        command(writer, reader, "EXEC Goto " + ivrContext + "," + ivrExtension + "," + ivrPriority);
+    }
+
+    private String command(BufferedWriter writer, BufferedReader reader, String value) throws IOException {
+        writer.write(value);
+        writer.newLine();
+        writer.flush();
+        String response = reader.readLine();
+        return response == null ? "" : response;
+    }
+
+    private boolean dialAnswered(String result) {
+        return result.contains("ANSWER");
+    }
+
+}
--- a/src/main/java/ir/peeco/callback/model/TblCdr.java
+++ b/src/main/java/ir/peeco/callback/model/TblCdr.java
@@ -0,0 +1,73 @@
+package ir.peeco.callback.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.Table;
+import lombok.Data;
+
+import java.sql.Timestamp;
+
+@Data
+@Entity(name = "tbl_cdr")
+@Table(name = "tbl_cdr", indexes = {
+        @Index(name = "dst_src_real_index", columnList = "dst,src,real_dst,uniqueid")
+})
+public class TblCdr {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false, columnDefinition = "timestamp WITH TIME ZONE")
+    private Timestamp calldate;
+
+    @Column(nullable = false)
+    private String clid;
+    @Column(nullable = false)
+    private String src;
+    @Column(nullable = false)
+    private String dst;
+    @Column(nullable = false)
+    private String dcontext;
+    @Column(nullable = false)
+    private String channel;
+    @Column(nullable = false)
+    private String dstchannel;
+    @Column(nullable = false)
+    private String lastapp;
+    @Column(nullable = false)
+    private String lastdata;
+    @Column(nullable = false)
+    private long duration;
+    @Column(nullable = false)
+    private long billsec;
+    @Column(nullable = false)
+    private String disposition;
+    @Column(nullable = false)
+    private long amaflags;
+    @Column(nullable = false)
+    private String accountcode;
+    @Column(nullable = false)
+    private String uniqueid;
+    @Column(nullable = false)
+    private String peeraccount;
+    @Column(nullable = false)
+    private String linkedid;
+    @Column(nullable = false)
+    private long sequence;
+    @Column(nullable = false)
+    private String userfield;
+    @Column(nullable = false, columnDefinition = "varchar(255) default ''")
+    private String real_dst;
+    @Column(nullable = false, columnDefinition = "varchar(255) default ''")
+    private String call_on_trunk;
+    @Column(nullable = false, columnDefinition = "varchar(1) default 'n'")
+    private String do_record_file = "n";
+    private String target;
+    private String direction_call;
+    private String target_name;
+}
--- a/src/main/java/ir/peeco/callback/service/CallbackCandidate.java
+++ b/src/main/java/ir/peeco/callback/service/CallbackCandidate.java
@@ -0,0 +1,6 @@
+package ir.peeco.callback.service;
+
+import java.sql.Timestamp;
+
+public record CallbackCandidate(long id, String src, Timestamp calldate, String disposition) {
+}
--- a/src/main/java/ir/peeco/callback/service/CallbackService.java
+++ b/src/main/java/ir/peeco/callback/service/CallbackService.java
@@ -0,0 +1,85 @@
+package ir.peeco.callback.service;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class CallbackService {
+    private static final String FIND_CANDIDATE = """
+            SELECT id, src, calldate, disposition
+            FROM tbl_cdr
+            WHERE real_dst = ?
+              AND direction_call = 'outbound'
+              AND disposition IN ('NO ANSWER', 'BUSY', 'FAILED')
+              AND calldate >= NOW() - (? * INTERVAL '1 minute')
+              AND (target IS NULL OR target = '')
+              AND NOT EXISTS (
+                    SELECT 1
+                    FROM tbl_cdr completed
+                    WHERE completed.real_dst = tbl_cdr.real_dst
+                      AND completed.direction_call = 'outbound'
+                      AND completed.target = ?
+              )
+            ORDER BY calldate DESC
+            LIMIT 1
+            """;
+
+    private final JdbcTemplate jdbcTemplate;
+    private final String claimValue;
+    private final String doneValue;
+    private final int lookbackMinutes;
+
+    public CallbackService(
+            JdbcTemplate jdbcTemplate,
+            @Value("${callback.agi.claim-value:pending}") String claimValue,
+            @Value("${callback.agi.done-value:callback_done}") String doneValue,
+            @Value("${callback.agi.lookback-minutes:60}") int lookbackMinutes) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.claimValue = claimValue;
+        this.doneValue = doneValue;
+        if (lookbackMinutes <= 0) {
+            throw new IllegalArgumentException("callback.agi.lookback-minutes must be greater than zero");
+        }
+        this.lookbackMinutes = lookbackMinutes;
+    }
+
+    @Transactional
+    public Optional<CallbackCandidate> claim(String customerNumber) {
+        List<CallbackCandidate> candidates = jdbcTemplate.query(
+                FIND_CANDIDATE,
+                (rs, rowNum) -> new CallbackCandidate(
+                        rs.getLong("id"),
+                        rs.getString("src"),
+                        rs.getTimestamp("calldate"),
+                        rs.getString("disposition")),
+                lookbackMinutes, customerNumber, doneValue);
+
+        if (candidates.isEmpty()) {
+            return Optional.empty();
+        }
+
+        CallbackCandidate candidate = candidates.get(0);
+        int claimed = jdbcTemplate.update("""
+                UPDATE tbl_cdr
+                   SET target = ?, target_name = ?
+                 WHERE id = ?
+                   AND (target IS NULL OR target = '')
+                """, claimValue, candidate.src(), candidate.id());
+        return claimed == 1 ? Optional.of(candidate) : Optional.empty();
+    }
+
+    public void markDone(long id) {
+        jdbcTemplate.update("UPDATE tbl_cdr SET target = ? WHERE id = ? AND target = ?",
+                doneValue, id, claimValue);
+    }
+
+    public void release(long id) {
+        jdbcTemplate.update("UPDATE tbl_cdr SET target = NULL WHERE id = ? AND target = ?",
+                id, claimValue);
+    }
+}
--- a/src/main/java/ir/peeco/callback/service/PhoneNumberNormalizer.java
+++ b/src/main/java/ir/peeco/callback/service/PhoneNumberNormalizer.java
@@ -0,0 +1,27 @@
+package ir.peeco.callback.service;
+
+import java.util.regex.Pattern;
+
+public final class PhoneNumberNormalizer {
+    private static final Pattern SEPARATORS = Pattern.compile("[\\s-]");
+
+    private PhoneNumberNormalizer() {
+    }
+
+    public static String normalize(String value) {
+        if (value == null) {
+            return "";
+        }
+        String number = SEPARATORS.matcher(value.trim()).replaceAll("");
+        if (number.startsWith("+98")) {
+            return number.substring(3);
+        }
+        if (number.startsWith("0098")) {
+            return number.substring(4);
+        }
+        if (number.startsWith("0") && number.length() > 1) {
+            return number.substring(1);
+        }
+        return number;
+    }
+}
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -0,0 +1,27 @@
+spring.application.name=callback
+spring.main.web-application-type=none
+debug=false
+logging.level.root=INFO
+logging.level.org.springframework=INFO
+logging.level.org.hibernate=INFO
+logging.level.com.zaxxer.hikari=INFO
+
+spring.datasource.url=jdbc:postgresql://127.0.0.1:5432/pline
+spring.datasource.username=root
+spring.datasource.password=Mehdi@123
+spring.datasource.hikari.maximum-pool-size=5
+spring.datasource.hikari.connection-timeout=1500
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.open-in-view=false
+spring.jpa.properties.hibernate.jdbc.time_zone=UTC
+
+callback.agi.dial-prefix=PJSIP/
+callback.agi.dial-timeout-seconds=45
+callback.agi.ivr-context=from-trunk
+callback.agi.ivr-extension=s
+callback.agi.ivr-priority=1
+
+callback.agi.enabled=true
+callback.agi.lookback-minutes=60
+callback.agi.claim-value=pending
+callback.agi.done-value=callback_done
--- a/src/main/resources/logback-spring.xml
+++ b/src/main/resources/logback-spring.xml
@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="AGI_STDERR" class="ch.qos.logback.core.ConsoleAppender">
+        <target>System.err</target>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="${LOG_LEVEL:INFO}">
+        <appender-ref ref="AGI_STDERR"/>
+    </root>
+</configuration>
--- a/src/test/java/ir/peeco/callback/CallbackApplicationTests.java
+++ b/src/test/java/ir/peeco/callback/CallbackApplicationTests.java
@@ -0,0 +1,13 @@
+package ir.peeco.callback;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class CallbackApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}
--- a/src/test/java/ir/peeco/callback/PhoneNumberNormalizerTests.java
+++ b/src/test/java/ir/peeco/callback/PhoneNumberNormalizerTests.java
@@ -0,0 +1,15 @@
+package ir.peeco.callback;
+
+import ir.peeco.callback.service.PhoneNumberNormalizer;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class PhoneNumberNormalizerTests {
+    @Test
+    void removesIranianPrefixesAndSeparators() {
+        assertEquals("9121234567", PhoneNumberNormalizer.normalize("+98 912-123-4567"));
+        assertEquals("9121234567", PhoneNumberNormalizer.normalize("00989121234567"));
+        assertEquals("9121234567", PhoneNumberNormalizer.normalize("09121234567"));
+    }
+}
--- a/src/test/resources/application.properties
+++ b/src/test/resources/application.properties
@@ -0,0 +1,7 @@
+spring.datasource.url=jdbc:h2:mem:callback;MODE=PostgreSQL;DB_CLOSE_DELAY=-1
+spring.datasource.username=sa
+spring.datasource.password=
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+callback.agi.enabled=false
+callback.agi.lookback-minutes=60