[Asterisk-Dev] MOH and Zombie Transfers

[Matthew Boehm]

Someone talked about this a while back and provided a patch, but I can't
seem to find the bug #.
(All of this is 1.0.7 and all phones are Cisco 7960s).


(Phone A calls Phone B.)
-- Executing Dial("Zap/2-1", "SIP/3030|15") in new stack
-- Called 3030
-- SIP/3030-bf07 is ringing
-- SIP/3030-bf07 answered Zap/2-1

(Phone B hits "Transfer". This places caller A on hold (hears music)).
-- Started music on hold, class 'default', on Zap/2-1

(Phone B dials Phone C.)
-- Executing Dial(SIP/3030-9627", "SIP/3087|15")
-- Called 3087
-- SIP/3087-cfce is ringing
-- SIP/3087-cfce answered SIP/3030-9627

Phone B and Phone C talk.
Phone B presses "Transfer" again to do the transfer.

Here is the interesting part:

Phone C "hears" MOH. But when phone C speaks, Phone A can hear his speech.
When Phone A speaks, Phone C cannot hear it (C is hearing MOH).

-- Attempting native bridge of SIP/3030-9627 and SIP/3087-cfce
-- Started music on hold, class 'default', on SIP/3087-cfce
-- Stopped music on hold on Zap/2-1

Why would music be started on 3087? Seems it wasn't released.

I know you guys really need a SIP debug, but I tried this same thing again
(to get the debug) and it worked fine except this time I got this:

-- Executing Dial("Zap/2-1", "SIP/3030|15") in new stack
-- Called 3030
-- SIP/3030-f674 is ringing
-- SIP/3030-f674 answered Zap/2-1
-- Called 3087
-- SIP/3087-51e0 is ringing
-- SIP/3087-51e0 answered SIP/3030-1ba9
-- Attempting native bridge of SIP/3030-1ba9 and SIP/3087-51e0
-- Started music on hold, class 'default', on SIP/3087-51e0
-- Stopped music on hold on Zap/2-1
-- Stopped music on hold on SIP/3087-51e0
-- Attempting native bridge of SIP/3030-1ba9<ZOMBIE> and SIP/3030-f674
WARNING: Can't fine native functions for channel 'SIP/3030-1ba9<ZOMBIE>'
WARNING: Private bridge between SIP/3030-1ba9<ZOMBIE> and SIP/3030-f674
failed.

Any ideas? I thought this was a problem with the phone, but after several
phones did it, I figured it can't be.

-Matthew

-- 
Matthew Boehm
  There is no air in space.
  If there was, we couldn't call it space.
  It would be called atmosphere.