|
I’ve been racking my brain for the last two days to
try to figure out what I could possibly be doing wrong in my configuration for
a SIP trunk that’s setup through my local ISPs Metaswitch. I’ve
setup a very simple SIP Peer, which I’ve played around with a lot in the
past two days but still comes back to the following basic setup: [provider-fireball] type=friend insecure=very host=1.2.3.4 context=keysystem nat=yes canreinvite=no username=1235551212 fromuser=1235551212 secret=mysecret disallow=all allow=ulaw For whatever reason, on inbound calls, the RTP stream coming
from the provider never initiates. The RTP stream on my side starts as
soon as my dialplan is set to Answer() and we send a 200 OK back to the
Metaswitch. However, after the 200 OK, we never receive an inbound RTP
stream. There are no known configuration changes on their side that would
cause this nor any configuration changes on my side. It’s a very
strange problem. Does anyone out there have any experience with interop
between Asterisk and Metaswitch? More importantly, has anyone ever seen
an issue where inbound SIP signaling works fine but no RTP inbound and it’s
definitely not a firewall issues (verified with multiple packet traces before
and after the firewall). Outbound calls work fine with the inbound and
outbound RTP streams both good. I have plenty of packet traces available
for people who are interested. Interestingly enough, a Linksys PAP2 on
the same network works fine with the same switch. Any ideas? Clint |
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