SIP Drafts: H.323 Interworking

SIP-H.323 Interworking Requirements: H. Agrawal, R. Roy, V. Palawat, A. Johnston, C. Agboh, D. Wang, K. Singh, H. Schulzrinne
July 2000.
This document describes the requirements for the logical entity known as the interworking function (IWF) that will allow the interworking between the SIP(Session Initiation Protocol) and H.323 networks.
Interworking Between SIP/SDP and H.323: K. Singh, H. Schulzrinne.
January 2000.