CUBE SIP Header - Changing value in the FROM field

[pematthe]

Our SIP ITSP is moving to a new platform and the SIP format they are asking for is different to their current platform. It looks like I need to so some modifications to the SIP information using profiles.  I understand the principle but I'm no good with REGEX so cannot get the right combination to make the change.

The ISTP wants a text string in the FROM field instead of the IP address within in the INVITE request.  Using profile and CUBE references, it looks like I need to do something like the following:

voice class sip-profiles 230
request INVITE sip-header from MODIFY "<sip:.*@1.1.1.1>" "<sip:.*@TEXTWITHTRUNK.INFO>

As I don't know what I am doing with REGEX and substitution, I receive the error:

Error: Invalid Pattern-quote is not escaped

 The IP address is always the same, the text is always the same.  This is for a specific dial-peer. 

Any help appreciated.

SIP Debug capture (edited)

Sent:
ACK sip:555101010@2.2.2.2:5060 SIP/2.0
Via: SIP/2.0/TCP 1.1.1.1:5060;branch=z9hG4bKca7b322a6b8a
From: "Our Co ID" <sip:555.2222222@1.1.1.1>;tag=2217584

needs to be....

From: "Our Co ID" <sip:555.2222222@TEXTWITHTRUNK.INFO>;tag=2217584

[Shalid Kurunnan Chalil · Accepted solution]

Hi

Please try the below 

voice class sip-profile 230 

rule 1 request INVITE sip-header From modify "@.*" "@TEXTWITHTRUNK.INFO"

rule 2 response INVITE sip-header From modify "@.*" "@TEXTWITHTRUNK.INFO"

If your IP is static, then you can replace .* with 1.1.1.1

voice class sip-profile 230 

rule 1 request INVITE sip-header From modify "@1.1.1.1" "@TEXTWITHTRUNK.INFO"

rule 2 response INVITE sip-header From modify "@1.1.1.1" "@TEXTWITHTRUNK.INFO"

you can use the following tool to test your sip rule : https://cway.cisco.com/tools/SipProfileTest/ 

Regards, 

Shalid

[pematthe]

Thank you Shalid. 

The profile setting you suggested cures the outgoing blocking by the ITSP but it uncovered a new set of issues. 

I can now make a call as the IP address is changed to the text string.  Unfortunately I am unable to control the call at all as CANCEL, BYE messages are ignored or are not sent.  I suspect this is the CUBE not seeing the profile in both directions so cannot reconcile outgoing messages with INCOMING responses.

I am going to keep looking into this problem but I will mark your answer as 'resolved' as the question I asked was answered.

[Roger Kallberg]

Your line 

voice class sip-profiles 230
request INVITE sip-header from MODIFY "<sip:.*@1.1.1.1>" "<sip:.*@TEXTWITHTRUNK.INFO>

It is missing a “ at the end of the line, that is why you get the error message.