ETSI TS 102 027-1-2006 测试方法和规范(MTS).SIP(IETF RFC 3261)一致性测试规范.第1部分:协议实现一致性声明(PICS)形式(版本4.1.1)
Methods for Testing and Specification (MTS); Conformance Test Specification for SIP (IETF RFC 3261); Part 1: Protocol Implementation Conformance Statement (PICS) proforma (V4.1.1)