Hi everybody: I'm having a problem with asterisk 1.4.22-3 on trixbox, This server have 8 lines connected at SIP VOIP provider vono in Brasil, all calls going to a same queue and are answered with 4 attendent on other network and location connected via PAP2 over nat. When the network down, in asterisk or pap in other locations, calls hang up but doesn't close on asterisk (Phantom call). All the docs and forum for solution are reading, various options are setted on asterisk and the dial command, but no success. The last place to contact and solve (if i'm mistaked on concept or config) are here, otherwise is a bug on asterisk. Options used on call that i will try to solve (but no solved) * Dial whit (s and S) Dial(sS...) * silencedetecthangup=25 (on all sip clientes and provider) [1] * I have read the bug 207 on digium [2] but no success I think are a config on queue that result on my problem For example, look at the first link on channel SIP/3008-add0f320, duration 20:26 (is infinitly) the pap client on 3008 are UNREACHABLE and the call are UP Channel Context Extension Prio State Application Data CallerID Duration SIP/3008-add0f320 from-internal 1 Up Bridged Call Local/3008 at from-internal- 3008 00:20:26 Local/3008 at from-inte Local/3008 at from-inte macro-dial s 7 Up Dial SIP/3008||sSr 48XXXXXXXX 00:20:26 SIP/3008-add0f320 Local/3008 at from-inte from-internal s 1 Up Bridged Call SIP/vono.linha1-adb0f030 48XXXXXXXX 00:20:26 SIP/vono.linha1-adb SIP/vono.linha1-adb verifica-prefixo s 3 UpQueue 10901|t||custom/40529082 48XXXXXXXX 00:20:50 Local/3008 at from-inte SIP/3002-adc20510 from-internal 1 Up Bridged Call Local/3002 at from-internal- 3002 00:21:31 Local/3002 at from-inte Local/3002 at from-inte macro-dial s 7 Up Dial SIP/3002||sSr 44XXXXXXXX 00:21:32 SIP/3002-adc20510 Local/3002 at from-inte from-internal s 1 Up Bridged Call SIP/vono.linha1-adb25560 44XXXXXXXX 00:21:32 SIP/vono.linha1-adb SIP/vono.linha1-adb verifica-prefixo s 3 Up Queue 10901|t||custom/40529445 44XXXXXXXX 00:21:42 Local/3002 at from-inte SIP/3001-adc03c08 from-internal 1 Up Bridged Call Local/3001 at from-internal- 3001 00:21:48 Local/3001 at from-inte Local/3001 at from-inte macro-dial s 7 Up Dial SIP/3001||sSr 47XXXXXXXX 00:21:48 SIP/3001-adc03c08 Local/3001 at from-inte from-internal s 1 Up Bridged Call SIP/vono.linha1-adb105c0 47XXXXXXXX 00:21:48 SIP/vono.linha1-adb SIP/vono.linha1-adb verifica-prefixo s 3 UpQueue 10901|t||custom/40639114 47XXXXXXXX 00:21:58 Local/3001 at from-inte SIP/3007-0a4b9ca8 from-internal 1 Up Bridged Call Local/3007 at from-internal- 3007 00:22:14 Local/3007 at from-inte Local/3007 at from-inte macro-dial s 7 Up Dial SIP/3007||sSr 43XXXXXXXX 00:22:15 SIP/3007-0a4b9ca8 Local/3007 at from-inte from-internal s 1 Up Bridged Call SIP/vono.linha1-adb00468 43XXXXXXXX 00:22:15 SIP/vono.linha1-adb SIP/vono.linha1-adb verifica-prefixo s 3 UpQueue 10901|t||custom/40529131 43XXXXXXXX 00:22:25 Local/3007 at from-inte [1]http://bugs.digium.com/view.php?id=207 [2]http://www.voip-info.org/wiki/view/Asterisk+sip+silencedetecthangup -- Giancarlo Rubio