Want to buy 4-5 Z1 devices for VoLTE testing but not sure it's have full VoLTE support "from-the-box" (basic VoLTE call, CSFB, SRVCC)? If anybody have this information???
I want to know too. I know that the Z1 has HD voice support (wideband audio) but I don't know if it has VoLTE support. Some phones have the hardware to support it but not the software (needs an updated firmware/software) and some phones do not have the hardware so there is no support at all.
