Hi, You can do a tcpdump/ethereal/wireshark it to get useful information about what is happening. If there are lots and lots of packets received at your end (say every 20, 40, or 60 ms) then you can safely assume you are receiving audio from the far end.
If your application is reporting as connected, then you can assume that call control components have been set up correctly. When using the voip protocol H.323, the call control stuff is via TCP, which always seems to work for initiating a call (despite what firewalls you have) The audio is sent on UDP, which is often nuked by firewalls. For the voip protocol SIP (which most argue is the industry standard) most of the control packets and audio is sent on UDP. Again, you need to look at the packet dump - if there are lots of packets received, then you are receiving audio packets. From this point, it is a matter of sound card config to actually hear the sound. sound card config - what is the best way? The simplest is to install a second sound card on your box, and reserve this for voip (a USB headset counts as a second sound card). In my experience, the distros vary in their ability to setup and configure multiple sound cards. It is possible to multiplex system sound and your voip sound onto the same card. Not fun though - it can mean a nightmare of /etc/alsa/asound.conf editing. Finally, don't attempt to do voip on a laptop using the internal microphone and speaker. Invariably, this results in the far end hearing their words echoed back to them. Derek. ================================================================== On Tue, 12 Feb 2008, Nick Rout wrote: > ekiga on the laptop seems to talk with 2talk thru 2 nat firewalls (voyage > linux as wireless AP and ipcop as internet gateway) > > openwengo/2talkphone seems to talk to 2talk at work through some sort of > hardware firewall/internet modem thing that I have never bothered to > investigate. > > Mind you I don't have a headset so all I can confirm is that it connects > to the server and dials etc. Haven't had a conversation with anyone yet! > A bluetooth headset would be nice. > > by the way an email to 2talk produced a link to their source for > 2talkphone. They are big open source fans apparently. > > On Mon, February 11, 2008 11:38 pm, Chris Hellyar wrote: > > What firewall/router you using? I've still not managed to get Ekiga to > > talk to 2talk.co.nz. -- Derek Smithies Ph.D. IndraNet Technologies Ltd. Email: [EMAIL PROTECTED] ph +64 3 365 6485 Web: http://www.indranet-technologies.com/
