Originally Posted by Dubdub
I don't think EDGE has the quality or speed to allow VOIP. EV-DO might.
I'm with Optus - I used 3G. I tested as a tethered modem to my PC, I used Xlite and it was perfect quality for VOIP calls - making 2 hops to the 'net...one from BB to my internal office, then made call from PBX out to (actually a US number, from Australia) so the path was long and hard - and it worked great.
So, I believe I've proved that 3G data carriage is high enough to make clear VOIP calls. I just need a software app written for BB to do this. I just wonder why none exists to date, none that I have found (there is an opportunity here for some developer).
I am getting about 250k down, and about 50k up - which is fine for VOIP (and I was using PCM codec which is the highest quality/bandwidth requirement) - if I drop the codec down, I guess you could get away with less upspeed (but quality of call my suffer).