Hello,
I’m new to the forum but I have a bizarre problem that I would like to share.
my SIP trunk details are as follows:
sip_conf details:
[[51CA3-IC]
secret=password
type=user
context=from-trunk
[vpd1pbx1nlsbst02]
disallow=all
username=4034007207
type=peer
secret=xxx
insecure=invite
host=10.191.220.241
fromdomain=10.191.220.241
dtmfmode=inband
context=from-trunk
canreinvite=no
allow=ulaw
my sip_nat.conf is as follows:
nat=no
externip=10.191.220.241
externip=10.191.220.245
localnet=10.191.168.149/255.255.255.240
localnet=10.0.0.0/255.240.0.0
what is weird is that in the REGISTER being sent to the ISP, the 10.191.168.149 is the source IP even though it’s on a different physical interface. The trunk originally registers but the OPTIONS dialogue is only between the 10.191.220.241/30 interfaces where the 10.191.168.149 interface is expecting it. The trunk then goes offline and then eventually reregisters.
I’m suspecting there is a missing value in the sip_conf that will explicitly state that the SIP diagloge for this trunk it to originate from the IP that I’ve been assigned (10.191.220.242).