Curious if anybody has had success with Dialogic series DMG gateways.  We
are experimenting with one and have one issue that seems likely to be caused
by the gateway.

First, what works --- calls to SipX extensions work fine, calls that go
redirect to voicemail because there is no registered phone work fine, calls
from SIP phones going back to the gateway work fine.  Transfers work fine. 
Lots of things work except for one case -

If a call comes from the Dialogic to SipX and a registered phone rings then
the call goes to voicemail because the phone was not answered, the call is
dropped by the Dialogic.  When the gateway sees a request to connect to a
different media than was indicated in the "ringing" messages, it seems to
loose its mind a bit.  It also forgets to tell the PBX to disconnect the
call.

While working with Dialogic on the case, I wanted to see if anybody had
seen and fixed this problem before.  Perhaps some magic parameter would make
it feel better.  Another indicator of a Dialogic issue is that calls between
SipX registered phone are always fine as well as calls through an Audiocodes
gateway.



Tony Wyland
Director of Network Services
Messiah College
[EMAIL PROTECTED]
717-766-2511 x2380

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