14. Normative References (规范性参考文献)

[1] Handley, M. 与 V. Jacobson, "SDP: 会话描述协议 (Session Description Protocol)", RFC 2327, April 1998.
[2] Bradner, S., "在 RFC 中用以表示需求级别的关键词 (Key Words for Use in RFCs to Indicate Requirement Levels)", BCP 14, RFC 2119, March 1997.
[3] Kumar, R. 与 M. Mostafa, "在 ATM 承载连接中使用会话描述协议 (SDP) 的约定 (Conventions For the Use of The Session Description Protocol (SDP) for ATM Bearer Connections)", RFC 3108, May 2001.
[4] Schulzrinne, H., Casner, S, Frederick, R. 与 V. Jacobson, "RTP: 实时应用的传输协议 (RTP: A Transport Protocol for Real-Time Applications)", RFC 1889, January 1996.
[5] Schulzrinne, H., "具有最小控制的音视频会议 RTP 配置文件 (RTP Profile for Audio and Video Conferences with Minimal Control)", RFC 1890, January 1996.

14. Normative References (规范性参考文献)​