I have switched to WXC because I cannot get Italk to work , it was working for years perfectly, some changes a couple a months ago..a you guys worked it out.. then couple of weeks ago - Italk crapped out again, no changes to my set up at all.

Got the "pip" and put in 2 talk and it worked perfectly.. so I decided to try WXC as everyone said they were more professional.. well I cannot get WXC to ring my IVR , in fact if i ring the number I get NU Tone, I can make outgoing calls to 0800 and my mobile without issue, I used the settings below and they work for OG not IC, oddly enough the same problem as Italk.

The forums I read said "add in port forwarding on the router" - done - no change

I can asterisk -vrrrr and see the outgoing call, if i make a call from my mobile to 09950xxxx I get NU Tone..  

Any ideas.. 

type=peer
fromuser=9950xxxx ; this is your VFX Number without the leading 0 i.e. 9950XXXX
host=pan.wxnz.net
insecure=invite,port
canreinvite=no
nat=yes
secret=xxxxxx
username=xxxxx

9950xxx:XXXX:XXXX@pan.wxnz.net/9950xxxx