This is a weird one. So I thought I'd start with the forum in order to see if other people have this issue occasionally, rather than taking it straight to a service ticket.

New VOIPo user, although not new to VoIP. I use my VOIPo line on my work-from-home days and start or join lots of conference calls as well as check my corporate voice mail. When I want to join or start a conference call, I have to enter a ten digit pass code. Often (I've noticed it most in the morning, but often in the afternoon as well) the conference line rejects the number I entered even though I KNOW I entered it correctly. When it reads the number back to me, there are often duplicates. For instance, I enter '1234567890' and the conference line says, "The number you entered, 1 2 2 3 4 5 6 6 7 7 8 9 0, is not a valid pass code".

The problem goes away after four to six tries. (The conference line hangs up on me after two failed attempts, so I end up calling back two or three times). And then the problem goes away for most of the rest of the day. Oddly, it seems to occur after I have not used the phone for a couple of hours - but that's kind of speculation based on hindsight.

It's not the conference service - we use Conference Plus and if this was a common problem they'd be out of business. It's not my phone - I usually use the cheap Uniden cordless, but I've been able to recreate the problem on our better quality Panasonic. Besides, as I alluded to above, I never had this issue when the Uniden was attached to the cable-line. I'm a tech guy who works with other geeks, so we've practically all got VoIP and I'm the only one having this problem. I don't recall having this problem with our voice-mail, but admittedly the longest string of numbers I enter there are my four digit extension and pin. And I've never had this problem with land-lines, cable-lines, or previous VoIP (a couple of years ago).

All this seems to point to the VOIPo provided Linksys RT31P2, my Linksys WRT160Nv3 running DD-WRT, or VOIPo. (By the way, same issue with or without QoS on the router).

Thoughts? Suggestions?