[Asterisk-Users] T100P and outbound calls.

[Mark Messmore, Technical Support, University Telcom Inc.]

Hey all.  We've just recently purchased a T100P in order to provide VoIP
to a remote office.  We've interfaced it with a DS1-formatter on our
Mitel GX5000 switch.  I realize that plugging the * PBX into this class
5 switch isn't the best situation to have in the world...but hey it's
what we've got.  We've just been having a couple of problems which I
believe to be related, but can't figure out.

First of all, outgoing calls fail.  The * box shows that it is dialing
out, assigned to the proper group, however I never hear anything.  The
call will sit there idle as long as I allow it to.  If I look at the
status on the GX5000, it shows that channel as being "blocked", but will
go back to "idle" the moment I hang up.  Unfortunately I can't (it's
possible but requires equipment that we don't have) monitor the GX to
see what is happening when I place the call from the * box.

The second problem, which I think to be caused by the same issue, has to
do with hearing a ring.  When placing a call from the outside that
travels over that T1, to the * box, I can see the call being directed to
the proper SIP location, it shows the phone as "ringing", and indeed the
phone at the "receiving" end of the line is ringing.  However the caller
does not hear the ring...only dead air.  While I know this is not a
major issue, I'm sure it will lead some to believe that the call is not
getting through since they don't hear the ringing on their phone.  

No I don't have a ton of experience with this stuff...but I am picking
up a lot of concepts rather quickly...so please bear with me.

Thanks for your help.

Mark