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SIP Normalization LUA scripting issue

Hi There


We are having an issue intergrating CUCM 8.5.1 and Lync conferencing using a SIP trunk between them.


The problem is that Lync recieves the SIP URI and cant decipher the URI


Has any faced these issues with intergration?


We are looking at SIP Normalization scripts to change the SIP URI and have found this script, which supposedly changes the to the IP address of our call manager which we think should fix the issue


M = {}

local function process_outbound_invite(msg)
local method, ruri, ver = msg:getRequestLine()
ruri = ruri.gsub(“″, "")


M.outbound_INVITE = process_outbound_invite

return M


Is this the correct sript as nothing appears to change in the header? Anyone able to help try figure this one, or even any one have an idea of another way to get around the issue if not SIP normalization?