Migrating VoIP providers to Nexmo, have incoming calls working great. Outbound calls fail with:
chan_sip.c: Failed to authenticate on INVITE to '<sip:ourNumber@OurExternalIP>;tag=as7130c686'
Outgoing SIP Settings (From Nexmo):
host=sip nexmo com
type=friend
insecure=port,invite
qualify=yes
allow=ulaw,alaw,g729
dtmfmode=rfc2833
username=xxx
fromuser=xxOurNumber
secret=xxx
Removed the periods from the host line, the forums don’t like new users posting URLs.
Have ports 10,000-20,000 forwarded, 5060 forwarded… I’ve Googled around for answers but haven’t had any luck. Not sure what other information is useful here, any help or suggestions are most welcome.