i've a pattno smartnode BRI for 2 ISDN line.
I've configured it wiht 2 sip trunk with pbx, all working fine until yesterday but now i've the second trunk that became unreachable. If i reboot the patton sip trunk becamo reachebale but after 5/10 minutes the second trunk gone unreachable.
patton and pbx are in same local lan without any firewall or block.
Any idea?
In follow the tunk conf
username=PattonUser1
secret=XXXXXXX
type=friend
host=dynamic
port=5060
nat=no
directmedia=no
defaultip=192.168.16.15
context=from-pstn
insecure=port,invite
dtmfmode=rfc2833
qualify=yes
disallow=all
allow=alaw&ulaw
rtpkeepalive=30
username=PattonUser2
secret=XXXXXXXXXX
type=friend
host=dynamic
port=5060
nat=no
directmedia=no
defaultip=192.168.16.15
context=from-pstn
insecure=port,invite
dtmfmode=rfc2833
qualify=yes
disallow=all
allow=alaw&ulaw
rtpkeepalive=30
In attach a screenshot of cli of sip show peers

Any idea?