Hi, everybody. I have schema: H323(cliens)<---------->GNUGK<-------------- | | SIP(cliens)<--->Asterisk(B)<---(IAX2 TRUNK)--->Asterisk(A)<--(H323 Peer)-->PBX<---->PSTN | | SCCP(client)<------------------------------- ASTERISK(B) - Linux + Asterisk-1.0.6 (IP-addressing INT-192.168.1/24 EXT-62.XXX.XXX.128/25) ASTERISK(A) - FreeBSD + Asterisk CVS-HEAD-04/14/05-21:00:38, Copyright (C) 1999 - 2005 Digium. (IP-addressing INT-192.168.100/24 EXT-62.YYY.YYY.192/27) When I call from PSTN to any clients - call is Ok! When I call from SCCP to any - call is Ok! When I call from H323(clients) to any - call is Ok! When I call from from SIP to PSTN - I have one way audio (PSTN-subscriber can hear SIP-client, at the same time SIP-client doesnt hear PSTN-subscriber). h323.conf ; The NuFone Network's ; Open H.323 driver configuration ; [general] port = 1720 bindaddr = 0.0.0.0 tos=lowdelay amaflags = billing accountcode=H323 disallow=all allow=all ; turns on all installed codecs ; dtmfmode=rfc2833 ; gatekeeper = DISABLE ; AllowGKRouted = no ; context=default ; ; H.323 Alias definitions ; noFastStart = no noH245Tunneling = yes noSilenceSuppression = yes [VIP-101T] type = user host = 192.168.100.55 incominglimit=1 context = to-pstn noFastStart = no noH245Tunneling = yes noSilenceSuppression = yes disallow = all allow = g729 allow = alaw allow=ulaw [avaya] type = peer host = 192.168.100.8 noFastStart = no noH245Tunneling = yes noSilenceSuppression = yes disallow = all allow=alaw iax.conf host A ; Inter-Asterisk eXchange driver definition ; [general] bindport=4569 bindaddr=0.0.0.0 ; amaflags=billing ; accountcode=IAX2 ; language=ru ; bandwidth=low ; allow=all ; jitterbuffer=no ; register => chita:secret@62.XXX.XXX.129 ; authdebug=no ; tos=lowdelay ; [chara] type=friend host=62.XXX.XXX.129 secret=secret sendani=yes qualify=yes context=to-pstn canreinvite=yes trunk=yes accountcode=CHARA disallow=all allow=g729 host B ; Inter-Asterisk eXchange driver definition ; [general] bindport=4569 bindaddr=0.0.0.0 ; amaflags=billing ; accountcode=IAX2 ; language=ru ; bandwidth=low ; allow=all ; jitterbuffer=no ; register => chara:secret@62.YYY.YYY.193 ; authdebug=no ; tos=lowdelay ; [chita] type=friend host=62.YYY.YYY.193 secret=secret sendani=yes qualify=yes context=to-pstn canreinvite=yes trunk=yes accountcode=CHITA disallow=all allow=g729 -- Best regards, Andrew Kochetkoff mailto:andrews@mtelecom.chita.ru