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CUCM SIP CUBE: Manipulations with INVITE Field

Some SIP providers prefer to work with INVITE field, while CISCO CUBE traditionally works with From: and To: fields.

Let’s take MSN provider as an example.

An incoming call header looks like this:

In this case, login is 48879800, and it is contained in INVITE field only.

Cisco translation-profile and translation-rule can only operate with numbers, and the complex header in To: field complicates the situation.

You can use sip-profiles to copy the number from INVITE field to To: field.

The structure should be the following:

voice service voip
  sip
    sip-profiles inbound
!
voice class sip-profiles 10
    request INVITE sip-header SIP-Req-URI copy "sip:(.*)@" u01
    request INVITE sip-header To modify ".*@(.*)" "To: voice translation-rule 10
  rule 1 /^48879800$/ /1401/
!
voice translation-rule 20
  rule 1 /^8\(..........$\)/ /+7\1/
!
!
voice translation-profile ITSP_Incoming
  translate calling 20
  translate called 10
!
dial-peer voice 1 voip
  description incoming from MCN-1
  translation-profile incoming ITSP_Incoming
  session protocol sipv2
  session target sip-server
  incoming called-number 48879800
  voice-class codec 1
  voice-class sip profiles 10 inbound
  voice-class sip bind control source-interface GigabitEthernet0/0/0.300
  voice-class sip bind media source-interface GigabitEthernet0/0/0.300
  dtmf-relay rtp-nte digit-drop
  no vad
!
dial-peer voice 500115 voip
  description To CUCM
  preference 5
  destination-pattern 48879800
  session protocol sipv2
  session target ipv4:10.7.20.251
  voice-class codec 1
  voice-class sip bind control source-interface GigabitEthernet0/0/1.200
  voice-class sip bind media source-interface GigabitEthernet0/0/1.200
  dtmf-relay rtp-nte digit-drop
  ip qos dscp cs3 signaling
  no vad
!

Then the number 48879800 can be sent to CUCM.

In the end, the call will look like this: