asterisk users - Jan 2007 - Asterisk 1.2.14 and Audiocodes Mediant 1000

I sent this yesterday, but saw zero traffic, so I think it got lost in
the ether, so I'm sending again.

I'm having an issue using Asterisk 1.2.14 and an Audiocodes Mediant 1000
ISDN gateway.  For the most part, everything is working except for
attended transfers.  When I do an attended transfer, and complete the
transfer before the 3rd party answers, the PSTN side hears dead air
until the PSTN party answers or the transfer goes to voicemail.  This
happens regardless of whether I use the phone to do the transfer, or *2
to have Asterisk do it.  Originally, it was actually disconnecting the
call, but I fixed that by telling it not to disconnect on a broken
connection, however that fact makes me think something is not quite
right.  Anyone else have experience with the Mediant gateways?

Thanks,

James
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