[asterisk-users] No media being sent in SIP call

[Mike Diehl]

There are NO ACL's in place, either at the network level, or application 
level.  We have a public address, so as far as I know, there are no forwarding 
rules in place.

On Wednesday 27 October 2010 4:04:16 pm Philipp von Klitzing wrote:
> Hi!
> 
> > I've turned off t.38 and all of the codecs except ulaw; I still have the
> > same problems.  SOMETIMES it works.  Other times, the sniffer clearly
> > shows that the media simply isn't being sent.  NOTHING is being sent.
> > 
> > Anything else I should check?
> 
> Look at the firewalls and possible SIP ALGs that are between the devices.
> Check for UDP port forwarding settings, and check that the RTP ports that
> have been negotiated for the call are not conflicting with those of other
> devices/calls/port forwarding settings.
> 
> Philipp

-- 

Take care and have fun,
Mike Diehl.