grant_k:eXDee: I've used VOIP on my android phone over XT and after playing with codecs a bit (and disabling it auto negotiating a high def codec with the SIP server) i found it was quite functional over XT.
Yeah, I think it's more of an issue with VFX than with VoIP in general. I found that Skype worked fine over XT so maybe some other VoIP service would do the job for the OP?
Or if VFX is the VoIP service of choice (as it is for me), how about forwarding all incoming calls to a Skype number at minimal cost, and then using a Skype phone or Android phone attached to the LAN via WiFi to receive incoming calls? (thereby unleashing Skype from the usual PC-based requirement).
Yes, Gtalk, which is SIP I believe works fine, it's just VFX that doesn't work over telecom.