Ok, I found the problem. I suggested that I disabled completely my shorewall-firewall, because there were no rules loaded. But I were mistaken... shorewall loads some kernel-modules, especially ip_nat_sip and ip_conntrack_sip, and these modules interfere with asterisk!
http://www.mail-archive.com/[email protected]/msg03968.html Regards Holger Holger Latz schrieb: > Hi all, > > I'd like to connect a softphone at home (nat, dynamic-ip) to a sip-phone > in the office via asterisk 1.4.21 (nat, fixed-ip). SIP works well, the > phone is ringing, but when I pickup the call, there's no audio on both > sides. > > I debugged the rtp-traffic at home. As long as the phone is ringing, > everything is fine. But after the pickup, asterisk sends a SIP/SDP > package with its private address (192.168.100.10). After the softphone > received this package, it tries to send RTP data to this address! > Obviously those packages never reach asterisk... > > Does 'externip' just works for SIP and not for RTP? > Where does the the internal IP-address come from and how can I set the > right one? > > > My configuration: > > [general] > externip = 85.XXX.XXX.XXX > nat = yes > localnet = 192.168.100.0/24 > > [42] > deny=0.0.0.0/0.0.0.0 > disallow=all > type=friend > secret=XXX > qualify=yes > port=5060 > pickupgroup= > permit=0.0.0.0/0.0.0.0 > nat=yes > mailbox...@device > host=dynamic > dtmfmode=rfc2833 > dial=SIP/42 > context=from-internal > canreinvite=no > callgroup= > callerid=device <42> > allow=alaw > accountcode= > call-limit=50 > > > Regards > Holger > > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
