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Genesys CTI User Forum => Genesys CTI Technical Discussion => Topic started by: peters on February 17, 2009, 10:24:22 AM

Title: custom SIP header
Post by: peters on February 17, 2009, 10:24:22 AM

Hello,

according to SIP server documentation, it should be possible to insert custom parameters to outgoing INVITE message.
It is mentioned on p. 137 of deployment guide (SIP_HEADERS), but not the way how and where to create them. They should be placed in AttributeExtensions section of RequestRouteCall, but i didn't find how to create them.

I would need to insert Diversion line with the DN number, because our telecom operator is discarding redirected calls outside callcenter (they don't know whom to bill the calls).

Peter

Title: Re: custom SIP header
Post by: René on February 17, 2009, 10:44:46 AM

Hi Peter,

What version of SIP Server are you talking about?

You can find detailed description about setup of this feature in "Framework 7.6 SIP Server Deployment Guide" , chapter "Mapping SIP Headers and SDP Messages". Just be careful as not all described features are available in previous releases of SIP Server. Please check release notes.

R.

Title: Re: custom SIP header
Post by: peters on February 17, 2009, 11:01:31 AM

Hi Rene,

i'm using latest 7.6. I read the section but didn't understand it quite. There are two ways how to achieve it - 1. edit SIPserver object in CME, 2-edit Troute parameter in URS. We would need to use this 2. way.

Do you have any example syntax of troute function with SIP_HEADERS?

Thanks,

Peter

Title: Re: custom SIP header
Post by: René on February 17, 2009, 01:14:21 PM

Hi Peter,

I did quick test and here is brief "how to" ;)

1. Put a new block of type "MultiFunction" before your "Selection" block in the strategy ( --- MultiFunction --- Selection)
2. Add following functions/lines to "MultiFunction" block

    ExtensionAttach['SIP_REQUEST_PARAMETERS','req-param-1']
    ExtensionAttach['req-param-1','local']

3. Save the strategy and test it

4. You should see in SIP Server log that RequestRouteCall has the keys "SIP_REQUEST_PARAMETERS" and "req-param-1" in the Extensions.

[color=navy]message RequestRouteCall
        AttributeThisDN '601'
        AttributeConnID 007801a94550a002
        AttributeOtherDN        '301'
        AttributeExtensions     [265] 00 0C 00 00..
                'InfoToSendInInvite'    'INVITE from SIP Server'
                [b]'SIP_REQUEST_PARAMETERS'        'req-param-1'[/b]
                [b]'req-param-1'   'local'[/b]
                'DEFAULT#'      '9999'
                'CUSTOMER_ID'   'Lab'
                'AGENT' '301'
                'PLACE' 'Place_301'
                'DN'    '301'
                'ACCESS'        '301'
                'SWITCH'        'SIP'
                'NVQ'   1
                'TARGET'        'vg_ServiceA@lab_rut_statsrv.GA'
        AttributeRouteType      0 (RouteTypeUnknown)
        AttributeReason [14] 00 01 01 00..
                'RTR'   116
        AttributeReferenceID    19[/color]

5. INVITE issued by SIP Server contains the parameter "req-param-1" in Request URI

[color=navy]     INVITE sip:301@172.18.1.1:13312;[b]req-param-1=local[/b] SIP/2.0
     From: <sip:303@172.18.1.2:5060>;tag=003BFA42-B380-199A-A590-020112ACAA77-8
     To: <sip:601@172.18.1.2:5060>
     Call-ID: 003BF9D4-B380-199A-A590-020112ACAA77-4@172.18.1.2
     CSeq: 1 INVITE
     Content-Length: 0
     Via: SIP/2.0/UDP 172.18.1.2:5060;branch=z9hG4bK003BFA56-B380-199A-A590-020112ACAA77-12
     Contact: <sip:303@172.18.1.2:5060>
     Allow: ACK, BYE, CANCEL, INFO, INVITE, MESSAGE, NOTIFY, OPTIONS, PRACK, REFER
     X-Genesys-CallUUID: 01EI265LRCCPL9CG080H5B5AES00000A
     Max-Forwards: 69
     Session-Expires: 1800;refresher=uac
     Min-SE: 90
     Supported: timer[/color]

R.

Title: Re: custom SIP header
Post by: peters on February 17, 2009, 02:33:35 PM

Hi Rene,

thanks it works! :)

Peter