I have just opened a ticket on this (DAL-694733) but thought it would be agood idea to post here to see if anyone else has encountered the same issue.

I was having occasional registration issues with my GrandStream so I received a pap2t yesterday and have installed it. Whenever I call another Voipo customer at a number that I won't mention here for privacy reasons, there is absolutely no audio on either side of the call. the user on the other end has a GrandStream. If he calls me on the other hand, audio is just fine. My pap2t is behind a Linksys 310n running DDWRT firmware. I have tried forwarding the ports 5060 an 5079 to the pap2t's ip address but this made no difference.

Note that this was never an issue calling the same person when I was using the GrandStream. this started with the pap2t. I know of another Voipo user that had the exact same issue with a pap2t that was never resolved so he was sent a GrandStream which worked fine and did not have this audio issue.

Currently, I still have both devices and will decide which one to send back, but I would love to get to the bottom of this audio thing since it is the second pap2t I have seen with this audio issue.

Any ideas out there?

Also, since the topic of audio quality came up at one time regarding the GrandStream VS the pap2t, I have had a chance to compare them both. In my opinion, the GrandStream has better audio, but the pap2t isn't bad at all however. The pap2t to my ears has a little more graininess in the audio than the GrandStream making the GS sound a little more natural to me. Just my opinion of course.

RA