I'm using X-Lite together with Sipgate for calls to landlines. On the whole it's usable but I have problems with brief interruptions in the audio at times, particularly when both parties speak simultaneously.
It's almost as if it was a half-duplex connection rather than a full-duplex connection. Or as if the software is muting the microphone when the other side is speaking. Maybe it is, I haven't managed to find any settings that look like they could change that though.
I'm running windows XP with latest updates behind a firewall with all necessary ports opened, and a have a 5Mb/s down 500Kb/s up DSL line which otherwise performs well. I've used the X-Lite software on two different computers with similar results. I also have a new USB headset where interestingly the problem is much worse than the old analogue headset.
Does anyone have a tip where I should look to solve this problem? Or would it be better with a hardware VoIP phone? I hesitate to splash out on one without being sure of this.
Can anyone advise me what I could try?
many thanks, David