ETSI EG 201 916-2001 高级网络的业务和协议(SPAN).业务提供者接入.支持开放网内接口和业务提供者接入的标准的发展(版本1.1.1)
Services and Protocols for Advanced Networks (SPAN); Service Provider Access; Development of Standards to Support Open Inter-Network Interfaces and Service Provider Access (V1.1.1)