It looks like the phone will sometime register, so the setting are probably Ok but it doenst stay up long. Looking at the SIP trace from the phone, I am getting "SIP/2.0 401 Unauthorized".
I was able to place one call with good 2 way voice, but again it doesnt stay up. I am using the same phone with multiple lines and the others are ok. My FreePhoneLine account does work with a 3CX softphone.
What could be the issue?
Thanks,