Modify SIP Profil "P-Asserted-Identity"; Privacy:id

Pascal Blumenthal · ‎06-20-2016

Hi all

I want to modify the SIP request, sent to the SIP Provider...

I like to modify the "P-Asserted-Identity" as well as I like to modify the Privacy status from "none" to "full".

Here is was our CUBE receives:

Received:
INVITE sip:*69100XXXXXXXXXXX@192.168.116.101:5060 SIP/2.0
Via: SIP/2.0/TCP 10.250.1.122:5060;branch=z9hG4bK85aa5b1cdc5498
From: "firstname surname" <sip:+XXXXXXXXXXX@10.250.1.122>;tag=37908225~5452b1e5-3a51-fcc6-cf3e-3d9a867d82eb-91500171
To: <sip:*69100XXXXXXXXXXX@192.168.116.101>
Date: Mon, 20 Jun 2016 07:46:41 GMT
Call-ID: 1f13cc00-76719f61-6e62c7-7a01fa0a@10.250.1.122
Supported: 100rel,timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM10.5
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence
Supported: X-cisco-srtp-fallback,X-cisco-original-called
Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP
Cisco-Guid: 0521391104-0000065536-0000009630-2046949898
Session-Expires: 3600
P-Asserted-Identity: "firstname surname" <sip:+XXXXXXXXXXX@10.250.1.122>
Remote-Party-ID: "firstname surname" <sip:+XXXXXXXXXXX@10.250.1.122>;party=calling;screen=yes;privacy=off
Contact: <sip:+XXXXXXXXXXX@10.250.1.122:5060;transport=tcp>;+u.sip!devicename.ccm.cisco.com="SEPAAAABBBBCCCC"
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 313

The Goal is to have the Privacy aktiv and I like to send the P-Asserted-Identity as follows:
P-Asserted-Identity: "Anonymous" <sip:anonymous@10.250.1.122>

At the SIP-Profil, I added the following line for Privacy but it doesn't work:
request INVITE sip-header P-Asserted-Identity add "Privacy: id"

Hope somebody can help me because I'm not very familiar with SIP profiles...

Thank you very much and I wish you a nice day.

Kind regards,
Pascal

Leszek Wojnarski · ‎06-20-2016

Pascal,

Try this one:

request INVITE sip-header Remote-Party-ID modify "(.*screen=)(yes;)(privacy=)(off)" "\1no;\3full"
request INVITE sip-header P-Asserted-Identity modify "P-Asserted-Identity: (.*)<sip:\+XXXXXXXXXXX@10.250.1.122>" "P-Asserted-Identity:\"Anonymous\" <sip:anonymous@10.250.1.122>"

Leszek

Pascal Blumenthal · ‎06-20-2016

Hi Leszek

Thank you for your answer.

It works as I asked for but I guess I have another issue.

The ISP told me that I need the "Privacy: id" information in the SIP Request.
When I add it with the command

request INVITE sip-header P-Asserted-Identity add "Privacy: id"

it will be added at the end of the Request. See example below.

Sent:
INVITE sip:XXXXXXXXX;phone-context=national@aaa.bbb.ccc.ddd SIP/2.0
Via: SIP/2.0/UDP 192.168.116.171:5060;branch=z9hG4bKF9E5C1B8B
From: <sip:anonymous@anonymous.invalid>;tag=83E8A618-129
To: <sip:XXXXXXXXX;phone-context=national@aaa.bbb.ccc.ddd>
Date: Mon, 20 Jun 2016 09:49:26 GMT
Call-ID: 1C33ADCD-360311E6-ADF78F2D-6EAAE112@192.168.116.171
Supported: 100rel,timer,resource-priority,replaces,histinfo,sdp-anat
Min-SE: 1800
Cisco-Guid: 1156947072-0000065536-0000009766-2046949898
User-Agent: Cisco-SIPGateway/IOS-15.5.3.S2
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Timestamp: 1466416166
Contact: <sip:anonymous@192.168.116.171:5060>
History-Info: <sip:XXXXXXXXX;phone-context=national@aaa.bbb.ccc.ddd>;index=1
Expires: 180
Allow-Events: telephone-event
Max-Forwards: 68
P-Asserted-Identity: "firstname surname" <sip:XXXXXXXXX;phonecontext=national@192.168.116.171>
Session-Expires: 3600
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 256
Privacy: id

But my ISP expect this Information just before the "Session-Expires: 3600" line.

Is there a possibility to add this line at a specific location?

Thank you very much for your help.

Kind regards,
Pascal

Leszek Wojnarski · ‎06-21-2016

Hi Pascal,

I don't know an easy was to put it in the specific place in the header. Maybe there is some method to do it but I'm not aware of any. You can try doing this:

request INVITE sip-header Session-Expires remove
request INVITE sip-header Privacy add "Privacy: id"
request INVITE sip-header Session-Expires add "Session-Expires: 1800"

What this will do is it will just remove previous Session-Expires header and put it at the end so "Privacy: id" will be before "Session-Expires: 1800" but they will be at the end of the header - I'm not sure if that will work for you service provider.

Max-Forwards: 70
Content-Type: application/sdp
Content-Length: 201
Privacy: id
Session-Expires: 1800

Leszek

Leszek Wojnarski · ‎12-28-2017

I know this has been asked a long time ago but maybe someone will find this useful.

If you have the topology like:

Phone----CUCM----CUBE----ITSP

then the following setting works just fine and achieving what is expected by telco:

On CUCM:

On route pattern:

Calling Line ID PresentationRequired Field to Restricted

Calling Name PresentationRequired Field to Resticted

On SIP trunk check:

Remote-Party-Id

and

asserted-Type change to PAI

This way CUCM will send to CUBE:

P-Asserted-Identity: "Leszek Wojnarski" <sip:+888888888@10.10.10.10>
Privacy: id

And then on CUBE need to put on dial-peer to telco something like:

voice-class sip asserted-id pai
voice-class sip privacy-policy passthru

this is just to forward all the information related to PAI as it to ITSP.

Leszek

roark-michael · ‎10-06-2020

Very helpful, thank you for the post!