SIP Normalization and Transparency
9.1(1) Developer Guide for SIP Transparency and Normalization.pdf - 7 Jan 2013: Includes SIP Transparency & Normalization feature overview, Lua scripting developer guide and reference, and code samples.
9.0(1) Developer Guide for SIP Transparency and Normalization.pdf - 26 Aug 2012: Includes SIP Transparency & Normalization feature overview, Lua scripting developer guide and reference, and code samples.
8.5(1) Developer Guide for SIP Transparency and Normalization.pdf - 4 Mar 2011: SIP T&N feature overview, Lua scripting developer guide and reference, sample code