This Recommendation specifies the DSS 1 signalling requirement on the N-ISDN user-network interface for the Explicit Call Transfer (ECT) supplementary service.
本建议规定了在N - ISDN用户-网络接口上用于明确呼叫转移(ECT)补充业务的DSS1信令要求。
This Recommendation defines the generic procedures applicable for the control of supplementary services at the user-network interface.
本建议定义了在用户网络接口上用于控制补充业务的通用程序。
This Recommendation is concerned with the layer 1 electrical, format and channel usage characteristics of the primary rate user-network interface at the S and T reference points.
本建议涉及在S和T参考点处使用的一次群速率用户—网络接口的第1层电的、格式的和通路特性。
This Recommendation is concerned with the layer 1 electrical, format and channel usage characteristics of the primary rate user-network interface at the S and T reference points.
本建议涉及在S和T参考点处使用的一次群速率用户—网络接口的第1层电的、格式的和通路特性。
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