Bandwidth.com only 1 simultaneous call, after that busy or all circuits are busy

[ccts (james olds)]

I have configured a bandwidth.com trunk and i can take and make a call from an endpoint, but a 2nd simultaneous call fails.

If I put call 1 on hold, attempt to make a 2nd outbound call from that same trunk, I get all circuits are busy

While call 1 is on hold, if I try to dial in to the same did, i get busy signal.

I tested this same scenario with vitelity & 2nd call comes thru no problem in or out, so it’s something with bandwidth and/or my config (bandwidth claims it’s not them).

[ccts (james olds)]

Here’s my trunk config:

outbound:
type=peer
outboundproxy=my-bandwidth-ip
host=my-bandwidth-ip
dtmfmode=rfc2833
disallow=all
allow=ulaw
canreinvite=no

inbound:
qualify=yes
insecure=yes
host=my-bandwidth-ip
dtmfmode=rfc2833
rfc2833compensate=yes
disallow=all
context=from-pstn-e164-us
canreinvite=no
allow=ulaw

[dolesec (Chris Dolese)]

Just look at the signaling

sngrep is part of our SNG7 distro

Open it make callwhile watching it and answer question — if it’s not hitting your box that’s an easy one

If it is proceed with capture and wire shark to nail it down