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Oracle SCA - Running Multiple SCA Instances And Call-ID Non-uniqueness (Doc ID 2205844.1)

Last updated on MARCH 05, 2019

Applies to:

Oracle Communications Network Charging and Control - Version 4.4.1 to 6.0.0 [Release 4.4 to 6.0]
Information in this document applies to any platform.


This addresses an scenario where the customer has multiple SCA(Session Control Agent) instances, each with it's own IP address. There might be a SIP (Session Initiation Protocol) softswitch that has SIP trunks set up, one for each SCA instance.

There is one issue that was identified when running more than one SCA instance: there are 2 completely different calls to SCA in B2BUA mode being made to 2 different instances of SCA. Each instance of SCA happens to have assigned the exact same SIP Call-ID value on the B-leg of the call to the two different calls. This means there are cases of Call-ID collision, which impacts the system.

This was tested and confirmed for Oracle Communications Network Charging and Control (OCNCC/NCC) 4.4.1 but it might affect newer versions of NCC.


 No changes have been noted on the environment, product, account or hardware.


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