This standard defines BICC IP Bearer Control Protocol. The BICC IP Bearer Control Protocol (IPBCP) is used for the exchange of media stream characteristics, port numbers, and IP addresses of the source and sink of a media stream to establish and allow the modification of IP bearers. The information exchanged with IPBCP is done during BICC call establishment. In addition, it may be exchanged after a call established. IPBCP uses the Session Description Protocol (SDP) defined in RFC 2327 to encode this information. This standard is ased on the ITU-T Recommendation Q.1970, BICC IP Bearer Control Protocol. It is suited for anticipated needs and applications within and between U. S. networks. Formerly known as T1.676-2001(R2006).