Security answer: Yes and no.
Recommendations:
A: No. Voice calls were introduced in Telegram version 5.0, which requires Android 5.0. The legacy APK for 4.2.2 stops at version 4.9.1 functionally. telegram apk for android 4.2.2
Cause: Some Telegram features attempt to call Google Play Services for push notifications.
Fix: Ignore the message – notifications will still work using Telegram’s own background service (though less battery-efficient). Security answer: Yes and no