[cisco-voip] hairpinning issue w/IPCCX

[Derick Winkworth]

All:

I am having an issue where a call is being hairpinned through our
Callmanager.  One call leg is coming in from our customer's Callmanager,
and the second call leg goes to their IPCC Express (their CM is doing
all the call control).  They can't enable path replacement because that
breaks their IPCC.  The flip side to that is that there is some call
signalling coming from their IPCC/CM that is causing our CM to drop both
call legs.  A wireshark capture shows us that we are getting a "Recorder
Warning Tone" Signal (0x0e) followed by a "Tones Off" signal (0x34). 

I would expect these to simply get looped back to the other call leg,
but it seems or CM (v6.1) doesn't know what to do with these. 

(1) How do we disable these signals on the IPCC? 
(2) What does "tones off" mean? 
(3) Could we deploy an H323 gateway in their environment and peer to it
instead of their CM?  Then the call would hairpin through it...  or
would that still drop the call legs when it gets these signals?

Thanks

Derick