I'm using gizmo5, and have found that it will ONLY connect using pcmu (the high bandwidth solution). This makes callers complain of my voice 'skipping' if I'm near a place that has sketchy 3g, or goes 3g-3.5g (using tmobile US network). I've tried editing id=-1 in .conf file above, and have found w/ the other codecs, the phone appears to answer an incoming call on my end, but just drops it immediately. Callers on the other end report never connecting and being sent to voicemail or the ilk (as if I never picked up, despite what the phone says.

Gizmo5 states that they support ilbc & the low(er) bandwidth PCM, as well as GSM. None of them seem to be working.

Is anyone else using Gizmo and seeing similar results? Is there something else I should be doing. I have the suggested SIP setup from gizmo's end, and am using pr1.2

NOTE. This setup WORKS, it just uses a (very) high bandwidth, unsuitable for anything but (very) good 3g connections.

GTalk and Skype work well; I would switch google voice forwaqrding to them, but prefer the way that the contact's info gets picked up on SIP; plus, right now, gizmo5 is free.