Hello, I have an Asterisk 1.2.10, with a TDM with 2 FXO modules, and 2 GSM Nokia32. I configured the TDM with loopstart signalling. For a few days, all works great: Nov 9 09:28:54 VERBOSE[19103] logger.c: -- Called g1/6XXXXXXXX Nov 9 09:28:54 DEBUG[19103] chan_zap.c: Exception on 14, channel 15 Nov 9 09:28:54 DEBUG[19103] chan_zap.c: Got event Hook Transition Complete(12) on channel 15 (index 0) Nov 9 09:28:57 DEBUG[19103] chan_zap.c: Exception on 14, channel 15 Nov 9 09:28:57 DEBUG[19103] chan_zap.c: Got event Dial Complete(9) on channel 15 (index 0) Nov 9 09:28:57 DEBUG[19103] chan_zap.c: Enabled echo cancellation on channel 15 Nov 9 09:28:57 VERBOSE[19103] logger.c: -- Zap/15-1 answered SIP/XXX [...] Nov 9 09:29:52 VERBOSE[19103] logger.c: -- Hungup 'Zap/15-1' But, suddenly, one day stops working: Nov 7 09:25:55 DEBUG[13081] channel.c: Avoiding initial deadlock for 'Zap/15-1' Nov 7 09:25:55 VERBOSE[32132] logger.c: -- Called g1/615213750 Nov 7 09:25:56 DEBUG[32132] chan_zap.c: Exception on 14, channel 15 Nov 7 09:25:56 DEBUG[32132] chan_zap.c: Got event Hook Transition Complete(12) on channel 15 (index 0) Nov 7 09:25:58 DEBUG[32132] chan_zap.c: Exception on 14, channel 15 Nov 7 09:25:58 DEBUG[32132] chan_zap.c: Got event Dial Complete(9) on channel 15 (index 0) Nov 7 09:25:58 DEBUG[32132] chan_zap.c: Enabled echo cancellation on channel 15 [...] Nov 7 09:28:30 VERBOSE[32132] logger.c: -- Hungup 'Zap/15-1' (I know the days are different, the important is the messages :D) In the second log, there is a missing line "Zap/15-1 answered SIP/XXX", the GSM thinks there is no conversation, and 3 minutes later, it hangs up the line. The solution is to restart Asterisk. I can't access to the configuration of Nokia32 because I don't know the password. Someone can tell me what is happening and how to solve this? Thanks in advance. -- Paco Brufal <pbrufal@servitux.es> ServiTux Servicios Inform?ticos S.L. Tel. 966 160 600 / Fax. 966 160 601