Ryan Posted September 18, 2007 Report Share Posted September 18, 2007 The Phone is a Grandstream phone. I can call the phone from my cell phone, and can hear and talk back and forth fine... but when I try to make a call from the phone, I cannot hear the other person talking, yet they can hear me. The fact that it works fine on receiving but not on sending makes no sense. It sounds like a firewall issue, but we are set up fine. Any ideas? Ryan Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted September 18, 2007 Report Share Posted September 18, 2007 Look at http://wiki.pbxnsip.com/index.php/Troubles..._Trunk_Problems for trunk problems. Also, you can look at the BYE packets send from the PBX. There you can see how many packets the PBX received. In one-way audio cases, that is very useful. If it all does not help, you can use Ethereal to see what is "truely" going on on the cable level. Quote Link to comment Share on other sites More sharing options...
Josh Posted October 3, 2007 Report Share Posted October 3, 2007 Have you tried calling Grandstream support? Theres also a Grandstream support forum at voxilla, you might to check them out. Quote Link to comment Share on other sites More sharing options...
brandywinetech.com Posted October 3, 2007 Report Share Posted October 3, 2007 Try using an xten softphone with a headset , if that does the same thing, you have an issue with the PBX, if the issue does not happen on that (or a different phone) you can at least narrow down where the issue is coming from .. are you using a SIP provider I assume and not an analog gateway ? yori Quote Link to comment Share on other sites More sharing options...
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