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Enthusiast

Multiple Diversion Headers with " and , in values

We are trying to apply a normalization script that removes all but the last Diversion header.  The problem is that our DH's contain "Lastname, Firstname" in them and that is screwing up the script.  How do I ignore the " and the , in the DH so I end up with an array result of DiversArray[1] and DiversArray[2]?  Also, is there a  way to add a domain to the end of "sip:LastnameF@10.95.249.32" so that the SIP URI is sent to Unity Connection?  Since CUC is 10.5, I am syncing the SIP URIs from LDAP as Alternate Extensions.  The script in use is:

Script:

M = {}

function M.outbound_INVITE(msg)

    local DiversArray = msg:getHeaderValues("Diversion")

    local DiversCount = #DiversArray

    if DiversCount > 1 then

        for I = 1, (DiversCount - 1) do

            msg:removeHeaderValue("Diversion", DiversArray[I])

        end

    end

end

return M

The incoming Invite:

INVITE sip:10072@10.95.249.120:5065 SIP/2.0

Via: SIP/2.0/TCP 10.95.249.32:5065;branch=z9hG4bK3466886ed1e5bd

From: "Chris Bomba" <sip:19297@10.95.249.32>;tag=5197421~eabeda24-350b-4a32-bee7-488ec9eff82b-57346743

To: <sip:10072@10.95.249.120>

Date: Tue, 02 Sep 2014 18:09:15 GMT

Call-ID: 3e661d00-406107cb-220803-20f95f0a@10.95.249.32

Supported: 100rel,timer,resource-priority,replaces

Min-SE:  1800

User-Agent: Cisco-CUCM9.1

Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY

CSeq: 101 INVITE

Expires: 180

Allow-Events: presence, kpml

Supported: X-cisco-srtp-fallback

Supported: Geolocation

Call-Info: <sip:10.95.249.32:5065>;method="NOTIFY;Event=telephone-event;Duration=500"

Cisco-Guid: 1046879488-0000065536-0000162743-0553213706

Session-Expires:  1800

Diversion: "lastname, firstname" <sip:lastnamef@10.95.249.32>;reason=no-answer;privacy=off;screen=no

Diversion: "lastname, firstname" <sip:15350@10.95.249.32>;reason=no-answer;privacy=off;screen=yes

P-Asserted-Identity: "Chris Bomba" <sip:19297@10.95.249.32>

Remote-Party-ID: "Chris Bomba" <sip:19297@10.95.249.32>;party=calling;screen=yes;privacy=off

Contact: <sip:19297@10.95.249.32:5065;transport=tcp>;video;audio;bfcp

Max-Forwards: 69

Content-Type: application/sdp

Content-Length: 1449

The resulting Invite after script:

INVITE sip:10072@10.95.249.120:5065 SIP/2.0

Via: SIP/2.0/TCP 10.95.249.32:5065;branch=z9hG4bK347ebf311e78fa

From: "Chris Bomba" <sip:19297@10.95.249.32>;tag=5205025~eabeda24-350b-4a32-bee7-488ec9eff82b-57350235

To: <sip:10072@10.95.249.120>

Date: Tue, 02 Sep 2014 18:52:16 GMT

Call-ID: 40cb7580-406111e0-221468-20f95f0a@10.95.249.32

Supported: 100rel,timer,resource-priority,replaces

Min-SE:  1800

User-Agent: Cisco-CUCM9.1

Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY

CSeq: 101 INVITE

Expires: 180

Allow-Events: presence, kpml

Supported: X-cisco-srtp-fallback

Supported: Geolocation

Call-Info: <sip:10.95.249.32:5065>;method="NOTIFY;Event=telephone-event;Duration=500"

Cisco-Guid: 1087075712-0000065536-0000163179-0553213706

Session-Expires:  1800

Diversion: firstname" <sip:lastnamef@10.95.249.32>;reason=no-answer;privacy=off;screen=no

Diversion: firstname" <sip:15350@10.95.249.32>;reason=no-answer;privacy=off;screen=yes

P-Asserted-Identity: "Chris Bomba" <sip:19297@10.95.249.32>

Remote-Party-ID: "Chris Bomba" <sip:19297@10.95.249.32>;party=calling;screen=yes;privacy=off

Contact: <sip:19297@10.95.249.32:5065;transport=tcp>;video;audio;bfcp

Max-Forwards: 69

Content-Type: application/sdp

Content-Length: 1449

Because of the "Lastname, Firstname" in the Diversion Header we get and error when parsing:

39762672.002 |15:12:50.581 |AppInfo  |//SIPLua/Info/SipMessage_removeHeaderValue: API failure(-5) for Device: Unity_Connection_SIPTrunk_01 Script: UseLastDiversion callid 2050ea80-406116b2-2219c2-20f95f0a@10.95.249.32 header 'Diversion' value ' Firstname" <sip:Lastnamef@10.95.249.32>;reason=no-answer;privacy=off;screen=no'

39762672.003 |15:12:50.581 |AppInfo  |//SIPLua/Info/SipMessage_removeHeaderValue: API failure(-5) for Device: Unity_Connection_SIPTrunk_01 Script: UseLastDiversion callid 2050ea80-406116b2-2219c2-20f95f0a@10.95.249.32 header 'Diversion' value '"Lastname'

Everyone's tags (4)
2 REPLIES 2
Highlighted
Cisco Employee

Re: Multiple Diversion Headers with " and , in values


Hi

   From your post what i understand is that you are looking for the logic to remove extra Diversion Headers which contains lastname and firstname. Found a bug - CSCtd31096 for a similar kind of issue

I would request you to refer https://supportforums.cisco.com/node/12151771  for related information.

Thanks and Regards,

Geevarghese

Highlighted
Enthusiast

Re: Multiple Diversion Headers with " and , in values

We worked with our local Cisco team to fix the normalization script.  Now it looks for the comma and splits the header.  We then delete the Diversion header and add it back in.  The comma was definitely causing the issue.

Thanks