topic Re: SIP Normalization Script to modify FROM header in Call Control

SIP Normalization Script to modify FROM header

Robert Craig — Mon, 05 Jun 2017 21:16:25 GMT

Hello. I'm looking to remove and replace the FROM header as the invite ingresses from Skype for Business into CUCM. Would the below script accomplish this? The invite currently just says "first.last@test.com:10.1.1.1". I'm looking to replace it with a phone number so its routable. Any help is appreciated.

Robert

M={}

function M.outbound_INVITE(msg)

local from = msg:getHeader("FROM") --Get FROM Header

local b = string.gsub(from, "(<sip:.+@)", "<sip:5551112222") --New FROM Header

msg:modifyHeader("From", b) --Replace FROM Header

end

return M

Re: SIP Normalization Script to modify FROM header

Geevarghese Cheria — Mon, 03 Jul 2017 02:51:58 GMT

Hi Robert,

Have moved your question under UC Manager SIP community. Please refer this url for related information

https://communities.cisco.com/thread/73584?start=0&tstart=0

Thanks and Regards,

Geevarghese

Re: SIP Normalization Script to modify FROM header

Mark Stover — Fri, 07 Jul 2017 12:55:04 GMT

Hi Robert,

Since the SIP INVITE is being received by Unified CM from S4B, it is an "inbound_INVITE" from the perspective of SIP Normalization.

BTW, There's a couple other minor tweaks I would make to your above...

M={}

function M.outbound_INVITE(msg)

local from = msg:getHeader("From") --Get FROM Header

local b = string.gsub(from, "<sip:.+@", "<sip:5551112222@") --New FROM Header

msg:modifyHeader("From", b) --Replace FROM Header

end

return M

I always use header names using a format of "From" rather than "FROM".

Since you aren't trying to 'capture' what you matched, the () in your match string aren't needed.

Re: SIP Normalization Script to modify FROM header

Robert Craig — Fri, 07 Jul 2017 13:37:10 GMT

OK, thank you very much!

Robert

Re: SIP Normalization Script to modify FROM header

nalonsovoip — Fri, 01 Dec 2017 21:26:19 GMT

Hi. Is there a way to modify this script to capture From header "unknown" or "anonymous" and change it to say +1234567890 under the same script?

Re: SIP Normalization Script to modify FROM header

Mark Stover — Mon, 04 Dec 2017 13:00:23 GMT

Hi,

Do you want the script to change it on outbound direction or inbound direction? It's straightforward if you want to add an inbound section. You just need a corresponding:

M.inbound_INVITE(msg)

...

end

before the "return M"

Re: SIP Normalization Script to modify FROM header

nalonsovoip — Mon, 04 Dec 2017 13:34:35 GMT

HI. I know how to change directions. What I’m not sure is how to make the script change the From header based on multiple “From” header values like Unknown, anonymous and Restricted.

Re: SIP Normalization Script to modify FROM header

sharath_gudimella12 — Mon, 07 Jan 2019 14:19:35 GMT

Hello Mark,

Can we have inbound and outbound in the same script, Inbound script is working but when it comes to outbound, it still displaying the messages, which we dont want. Outbound call is made by the CCB funtionality.

M = {}
function M.inbound_ANY(msg)
local from = msg:getHeader("Remote-Party-ID")
if (from ~= nil) then
from = string.gsub(from, "--CVP[_0-9]*", "")
msg:modifyHeader("Remote-Party-ID", from )
end
end
function M.outbound_ANY_ANY(msg)
local from = msg:getHeader("Remote-Party-ID")
if (from ~= nil) then
from = string.gsub(from, "--CVP[_0-9]*", "")
msg:modifyHeader("Remote-Party-ID", from )
end
end
return M

Can you let us know if that work ?