ETSI TS 102 709-1-2010 IMS网络测试(INT)技术委员会.BICC或ISUP作为信令协议3GPP Cs域与外部SIP-I网络间的互通.第1部分:协议实现一致性声明(PICS)(版本3.1.1)
Technical Committee for IMS Network Testing (INT); Interworking between the 3GPP Cs domain with BICC or ISUP as signalling protocol and external SIP-I networks; Part 1: Protocol Implementation Conformance Statement (PICS) V3.1.1