Dear Sir, I am using pjsip_1.8.10 with siphon. It was working fine. But recently it got a problem while registering SIP i received an incoming call(gsm). After that the registration process is taking so long time. I don't know if the incoming call affected it or not. It happens all time when i close app and reopen it.I didn't change any code. I am using iPhone4. In iPhone3G(iOS 4.2) it is working fine(i didn't test on any other devices). In gdb I am getting the following log now... void SendDelegateMessage(NSInvocation*): delegate (webViewDidLayout:) failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode This error wasn't shown before. How can I solve it now ? Please help.... Thanks & Regards Ferdous Ahmed