When I just use one standard sip trunk everything is working withouth any problem. The trunk keeps registered withouth any problem.
When I add a second sip trunk and enable it both trunks are not getting registered anymore.
It only happens when I enable the second trunk so when I only enable the new sip trunk everything works fine.
I checked everything but I could not find the problem:
vmexten=123
videosupport=yes
username=xxxxxxxxxx
type=friend
trustrpid=yes
textsupport=yes
srvlookup=yes
sendrpid=yes
secret=xxxxxxxxxxx
qualify=yes
nat=no
insecure=invite,port
host=xxxxxxxxxxxx
fromuser=xxxxxxxxx
fromdomain=xxxxxxxxxxx
disallow=all
canreinvite=no
bindport=5060
bindaddr=0.0.0.0
allow=ulaw&alaw&t140&h263