1. ITU-T recommendation I.150, B-ISDN asynchronous transfer mode functional characteristics, Geneva, Switzerland, February 1999.
2. ITU-T Draft Recommendation Q.2931, Broadband Integrated Services Digital Network (B-ISDN), Digital Subscriber Signaling System No. 2, User Network Interface Layer 3 Specification for Basic Call/Connection Control, Geneva, Switzerland, June 1994.
3. ITU-T Recommendation Q.700, introduction to CCITT Signaling System No. 7, Geneva, Switzerland, June 1994.
4. ITU-T Recommendation Q.701, Functional description of the message transfer part (MTP) of signaling system no. 7 Geneva, Switzerland, April 1994.
5. A survey of UNI signaling systems and protocols for ATM networks