Hi Folks,
I just configured a SIP-FRIEND to the card 0709935046 of my test customer. But I tried to registry my SIP phone using:
Authorization User Name: 0709935046 (card number)
Secret: 940632 as (secret field of SIP friend)
Host: 192.168.0.100
But I got this erro message in my SIP phone Registratios error: 404
Do I have to extra configure something to use a2billing with elastix?
Help me please"

I lost my day trying to fix it but I couldn't.
