Add this "rule 3 /^$/ /Number you want /
I tried your setup on my lab and calls where sent to isp without caller ID, the above will translate Null to number.
Before translation
Post Translation
I'm no expert on LUA script, but maybe you can use this to get some inspiration on what you could do on the trunk in CM.
--[[
02/20/2019
THIS IS A PROOF OF CONCEPT SCRIPT AND SHOULD BE TESTED PRIOR TO DEPLOYMENT INTO A PRODUCTION ENVIRONMENT.
THIS SCRIPT IS NOT SPECIFICALLY SUPPORTED BY TAC, CISCO SYSTEMS OR ANY OF ITS AFFILIATES.
If this script does not behave as expected,
1) change the 'trace.disable()' to 'trace.enable()'
2) reset the SIP trunk
3) place a couple of calls into the trunk to demonstrate the issue
4) collect a detailed the SDI trace file
5) mail the trace file, current SIP trunk script (if changes were made) and a description of the issue that includes
the date, time, calling/called numbers and the result to Dan Keller for review
Dan Keller
dakeller@cisco.com
Purpose:
This script is intended for customers that want to ALLOW or BLOCK anonymous calls into their system while blocking specific caller id's.
In CUCM 8.5 and previous, digit analysis did not handle non-numeric dial strings. So when routing based on calling party
number, and the calling party number was 'anonymous' or 'unavailable', CUCM could never accept the call. This script
removes the unroutable sting completely, thus allowing CUCM to route or block based on a <NULL> route pattern in the <Filter_List> partition.
This script should be applied to any SIP Trunk on Cisco Unified Communications Manager that will be processing inbound calls
that need to be allowed. If this script is not applied, than all inbound calls from anonymous sources will be blocked by when
using the configuration in the "Blocking Inbound calls to Cisco Unified Communications Manager based on Caller ID"
(https://supportforums.cisco.com/document/71966/blocking-calls-based-calling-party-id)
This script has been tested with the Call Blocking Application Note and works with CUCM 8.5.1, 9.1(x), 10.x, 11.x, 12.x
NOTE: Early versions of 11.0 prevented the addition of the ! xlate pattern. This defect was reported in CSCuv82528.
This defect affected the following versions: 11.0(1.20000.2) and 11.0(1.10000.10)
When configuring this script, set the Lua Instruction Threshold to 1500.
Parameters: none
Revision History:
02/25/2014 - Original Script
04/15/2014 - Added PPI to the fields to check
07/01/2014 - Added the 'restricted' check
08/13/2017 - Changed the search criteria from lower() to case insensitive.
Enhanced the script to replace the modified from field on fix issues with a few providers
05/30/2018 - Removed global variables and used per dialog context and added handling for reINVITE messages
02/18/2019 - Fixed memory leak from OPTIONS Ping messages on SIP Trunks
--]]
M={}
--change to trace.enable() to have trace output in SDI
trace.enable()
function M.outbound_INVITE(msg) --capture outbound INVITE/ReINVITE messages
trace.format("Processing a outbound INVITE or ReINVITE")
--replace the to field with the original from header
if msg:isReInviteRequest()
then
local context = msg:getContext()
local tag = context["tag"]
local fromHeader = context["fromHeader"]
if (tag and fromHeader)
then
--get the To header
local calledNumber = msg:getHeader("To")
--replace the from field with the original header
trace.format("Found Context: tag: %s, fromHeader: %s", tag, fromHeader)
trace.format("Found reINVITE message. Looking for tag in to header.....")
trace.format("Tag: %s, To Header: %s, size=%s", tag, calledNumber, string.len(tag))
if string.find(calledNumber, tag, 1, true)
then
trace.format("Found header in TO and replacing with original header")
msg:modifyHeader("To", fromHeader)
else
trace.format("string.find failed to find %s in %s", tag, calledNumber)
end
else
trace.format("Failed to get Context")
end
else
trace.format("Not a ReINVITE message")
end
end
function M.outbound_ANY_ANY(msg) --capture any outbound response messages to the INVITE
trace.format("Processing a outbound SIP response")
local optionPing = msg:getHeader("CSeq")
if (optionPing and string.find(optionPing, "OPTIONS"))
then
trace.format("OPTIONS PING message.....ignoring")
else
local context = msg:getContext()
local tag = context["tag"]
local fromHeader = context["fromHeader"]
if (tag and fromHeader)
then
trace.format("Found Context: tag: %s, fromHeader: %s", tag, fromHeader)
--replace the from field with the original header
local header = msg:getHeader("From")
local tofield = msg:getHeader("To")
trace.format("Looking for tag in to and from header.....")
if string.find(header, tag, 1, true)
then
trace.format("Found header in FROM and replacing with original header")
msg:modifyHeader("From", fromHeader)
--When a call requires a REINVITE, the original FROM field will become the TO field.
--This script needs to adjust the TO field to look like the FROM field.
elseif string.find(tofield, tag, 1, true)
then
trace.format("Found header in TO and replacing with original header")
msg:modifyHeader("To", fromHeader)
end
else
trace.format("Not an INVITE response. No changes made")
end
end
end
function M.inbound_INVITE(msg) --capture inbound INVITE messages
--set the string to replace the anonymous, unavailable or restricted strings in the INVITE message
replacementNumber = "sip\:"
trace.format("Replacement Number: %s", replacementNumber)
--Set the header values to inspect for anonymous caller
local fields = { "From" , "Remote-Party-ID" , "P-Preferred-Identity", "P-Asserted-Identity" }
local numberOfFields = #fields
trace.format("Fields/Count: %s, %s, %s, %s, %s", fields[1], fields[2], fields[3], fields[4], numberOfFields)
local newHeader = ""
--loop though the header fields to inspect and replace any instance of 'anonymous' with the specified replacement number
--UCM will use the following headers for digit analysis: PAID, RPID, From
local x = 1
while x <= numberOfFields do
--get the field from the header
local header = msg:getHeader(fields[x])
if header == nil
then
trace.format("Field %s not found", fields[x])
else
trace.format("Field %s: %s", fields[x], header)
--does the from contain anonymous
if string.find(header, "[Ss][Ii][Pp]\:[Aa][Nn][Oo][Nn][Yy][Mm][Oo][Uu][Ss]")
then
trace.format("Found string anonymous in %s", fields[x])
trace.format("Header: %s %s", fields[x], header)
--replace the word anonymous with the user defined replacement number
newHeader = string.gsub(header, "[Ss][Ii][Pp]\:[Aa][Nn][Oo][Nn][Yy][Mm][Oo][Uu][Ss]", replacementNumber)
trace.format("New %s Field: %s", fields[x], newHeader)
--modify the From field
msg:modifyHeader(fields[x], newHeader)
elseif string.find(header, "[Ss][Ii][Pp]\:[Uu][Nn][Aa][Vv][Aa][Ii][Ll][Aa][Bb][Ll][Ee]")
then
trace.format("Found string unavailable in %s", fields[x])
trace.format("Header: %s %s", fields[x], header)
--replace the word unavailable with the user defined replacement numbe
newHeader = string.gsub(header, "[Ss][Ii][Pp]\:[Uu][Nn][Aa][Vv][Aa][Ii][Ll][Aa][Bb][Ll][Ee]", replacementNumber)
trace.format("New %s Field: %s", fields[x], newHeader)
--modify the From field
msg:modifyHeader(fields[x], newHeader)
elseif string.find(header, "[Ss][Ii][Pp]\:[Rr][Ee][Ss][Tt][Rr][Ii][Cc][Tt][Ee][Dd]")
then
trace.format("Found string restricted in %s", fields[x])
trace.format("Header: %s %s", fields[x], header)
--replace the word unavailable with the user defined replacement number
newHeader =string.gsub(header, "[Ss][Ii][Pp]\:[Rr][Ee][Ss][Tt][Rr][Ii][Cc][Tt][Ee][Dd]", replacementNumber)
trace.format("New %s Field: %s", fields[x], newHeader)
--modify the From field
msg:modifyHeader(fields[x], newHeader)
else
trace.format("Field %s number valid. No change made.", fields[x])
end
end
if x == 1
then
--if there is a valid From header, create a local context and store the entire from string for outbound replacement
local context = msg:getContext()
if context
then
local startTag = string.find(header, "[Tt][Aa][Gg]")
if startTag
then
context["tag"] = string.sub(header, startTag + 4)
context["fromHeader"] = header
trace.format("Context:Tag: %s, fromHeader: %s", context["tag"], context["fromHeader"])
end
end
end
x = x+1
end
end
return M
