Hi all
 
I have an INVITE coming from CUCM leg at CUBE and then it goes through SP leg being modiied by Sip protocol default's behavior.
 
CUCM -> CUBE -> SP
 
The INVITE from the CUCM:
 
Contact: <sip:490043@23.13.0.251:5060;transport=tcp>;video;audio;isFocus;x-cisco-tip;x-cisco-multiple-screen=3
 
INVITE sent to provider: 
 
Contact: <sip:490043@192.145.71.XX:5060;transport=tcp>;x-cisco-tip;
 
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I need copy "x-cisco-multiple-screen=3" from CUCM contact header INVITE and paste on INVITE sent to provider.
 
I have raised a TAC case for this but no success so far.
 
This is done in order to overcome a SIP limitation that does not allow use the 3 screens that Cisco Telepresence Endpoint has. The protocol is TIP (Telepresence Interoperability Protocol)
 
 
does anyone has faced this situation before?