Hi Dave, Long time no see...
I have been looking at the various packets going in/out of my network with regards to my SIP phones. I usually use the ethereal network sniffer on my network and it has wonderful support for SIP/RTP/RTSP/SDP analysing. In the setup phase of a call the RTP packet shows exactly what IPs and ports that your call is supposed to use. When I have these problems, I sniff the network and it shows a private IP instead of the public (external) IP in the voice data stream. Then it's easy to see what needs to be fixed. What kind of router/firewall do you use ? I can send you some examples later on tonight if you need them. Best regards, Johan Landerholm, Stockholm, Sweden (ex. SCO) > Now this is really frustrating. Everything was working fine, and now it > isn't ... I don't think I've changed anything that would affect this, but > I > guess you never can be too sure. > > My setup is as follows: > > SIP softphone (SJphone) connected to Asterisk running my Linux NAT > firewall > box. This is all on the internal network. > > Asterisk then dialing out through various means - SIP to Stanaphone, FWD, > Gossiptel and PSTN via an X100P. > > For incoming calls, an 0870 number from CallUK routes to my FWD account, > and > an 0870 number from Gossiptel routing to my Gossiptel account. > > Outbound calls all work fine ... I get audio in both directions, no > problem. > > Incoming calls on either 0870 number connect fine, and audio goes from the > softphone to the caller, but not the other way ... I hear no audio on the > softphone from the caller's phone. > > I'm getting no alerts from my firewall that it's dropping anything. > > I know my way around packet sniffers, but I don't know what to look for > here. What should the inbound audio packets look like? > > Thanks > > > -- > David Gurr > Congruity Ltd. > Hemel Hempstead, UK > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
