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SIP Invite change for anonymous calls

John Vosburg
Beginner
Beginner

I noticed a change in IOS Gateways in how it deals with anonymous calls.  Anonymous calls in version 12.4(25g) generates an SIP INVITE:

From: "anonymous" <sip:6172589132@18.255.255.29>

A anonymous calls on version 15.1(4)M8 generates a SIP INVITE:

From: "anonymous" <sip:anonymous@18.255.253.11>

The p-asserted-identity and remote-party-id did not change.  None of our other SIP systems use the "anonymous@" format.

How do I get the 15.1 GW to use "<number>@" instead of "anonymous@" for these calls?

Thanks,

-John

2 Replies 2

Manish Gogna
Cisco Employee
Cisco Employee

Hi John,

The only possible solution that i could think of for this scenario is through the use of SIP profiles on the gateway. There are quite a few posts and docs which you can check to try and configure one for your setup

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-border-element/105624-cube-sip-normalization.html

http://www.gossamer-threads.com/lists/cisco/voip/127376

HTH

Manish

 

 

 

The SIP profile will not work since the phone number is not in the from header and I cannot pull variables from different rules.  Otherwise I would pull the RPI value and place it in the from header.  

Do you know why this was changed in IOS without a mechanism to revert back?

 

Thanks,

-John

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