I've rebooted the server, still my SIP channel is unavailable. My router is just a BT Business Hub.
I have done some further testing. Using Zoiper as a softphone and configuring it with my registration details I can make 1 or 2 calls before getting the error:
13:40:24 Line 1 : outgoing call to '07989327933'
13:40:24 Line 1 : failed (bearercapability notauth)
I then have to unregister and register the Zoiper softphone. I am almost convinced that it's either a BT issue or its a Node4 issue. I am convinced that nothing has changed on my router, nothing has changed on my GA server.
Here are my SIP settings anyway:
registration string: register => 08454133***:PASSWORD@83.166.160.***:5060
account entry: [Node4]
disallow=all
allow=g729
allow=gsm
allow=ulaw
type=friend
username=08454133***
secret=PASSWORD
host=sipua.sip-link.com
dtmfmode=rfc2833
context=trunkinbound
qualify=yes
insecure=very
Dial plan: exten => _944X.,1,AGI(
agi://127.0.0.1:4577/call_log)
exten => _944X.,2,Dial(SIP/${EXTEN:3}@Node4,,tToR)
exten => _944X.,3,Hangup