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CUCM ISUP-OLI / ANI II pass-through

Unanswered Question

Hi, I've a Cisco UBE that receive a SIP calls from a remote provider. This provider send ANI-II Digits into a From header like:

Received: 

INVITE sip:[email protected]:5060 SIP/2.0

From: <sip:[email protected]:5060>;isup-oli=00;tag=SDs1ts901-10.50.83.40+1+161e1d+61e8c298

 

but when CUBE pass-through this call it strip ANI II Digits 

 

Sent: 

INVITE sip:[email protected]:5060 SIP/2.0

From: <sip:[email protected]>;tag=850A3664-1051

 

Is there any way to avoid this? I need to pass-through ISUP-OLI on From header.

 

 

 

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