diff --git a/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7IncomingCallQueue.kt b/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7IncomingCallQueue.kt
index 8d393bc..6df60be 100644
--- a/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7IncomingCallQueue.kt
+++ b/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7IncomingCallQueue.kt
@@ -159,7 +159,12 @@ object F7IncomingCallQueue {
             val prefs = prefs(context)
             cancelTimeout(context)
             cancelNotification(context)
-            prefs.edit().remove(KEY_QUEUE).remove(KEY_ACTIVE_TOKEN).remove(KEY_ACTIVE_AT).remove(KEY_ACTIVE_CALL).apply()
+            prefs.edit()
+                .remove(KEY_QUEUE)
+                .remove(KEY_ACTIVE_TOKEN)
+                .remove(KEY_ACTIVE_AT)
+                .remove(KEY_ACTIVE_CALL)
+                .apply()
         }
     }
 
diff --git a/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7PushRegistrar.kt b/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7PushRegistrar.kt
index 6d98c89..ef97d9e 100644
--- a/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7PushRegistrar.kt
+++ b/core/push/src/main/java/ru/forbion/f7cloud/core/push/F7PushRegistrar.kt
@@ -17,6 +17,10 @@ object F7PushRegistrar {
     private const val TAG = "F7PushRegistrar"
     private const val PREFS = "f7push"
     private const val KEY_DEVICE_ID = "device_id"
+    private const val MAX_ATTEMPTS = 3
+
+    // Паузы перед 2-й и 3-й попытками (мс); экспоненциальный бэкофф.
+    private val BACKOFF_MS = longArrayOf(1000L, 3000L)
 
     fun getDeviceId(context: Context): String {
         val prefs = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
@@ -41,12 +45,40 @@ object F7PushRegistrar {
             .put("platform", "android")
             .put("clientApp", "f7cloud-mobile")
             .toString()
-        return try {
-            postJson(endpoint, session, body)
-        } catch (t: Throwable) {
-            Log.w(TAG, "register failed", t)
-            0
+
+        var lastCode = 0
+        for (attempt in 0 until MAX_ATTEMPTS) {
+            if (attempt > 0) {
+                val wait = BACKOFF_MS[(attempt - 1).coerceAtMost(BACKOFF_MS.size - 1)]
+                try {
+                    Thread.sleep(wait)
+                } catch (_: InterruptedException) {
+                    Thread.currentThread().interrupt()
+                    return lastCode
+                }
+            }
+            lastCode = try {
+                postJson(endpoint, session, body)
+            } catch (t: Throwable) {
+                Log.w(TAG, "register attempt ${attempt + 1} failed", t)
+                0
+            }
+            if (!isRetryable(lastCode)) {
+                return lastCode
+            }
+            Log.w(
+                TAG,
+                "register attempt ${attempt + 1} got $lastCode, " +
+                    if (attempt + 1 < MAX_ATTEMPTS) "retrying" else "giving up"
+            )
         }
+        return lastCode
+    }
+
+    // Транзиентные сбои: сетевое исключение (0), ошибка сервера (5xx), 408/429.
+    // 2xx — успех, 4xx (кроме 408/429) — постоянная ошибка (кривой app-password/запрос), повтор не поможет.
+    private fun isRetryable(code: Int): Boolean {
+        return code == 0 || code >= 500 || code == 408 || code == 429
     }
 
     private fun postJson(endpoint: String, session: AuthSession, json: String): Int {