ITU-T I.252.1-1988
呼叫提供补充服务：呼叫转接

Call offering supplementary services: Call Transfer

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标准号

ITU-T I.252.1-1988

发布

1988年

发布单位

ITU-T - International Telecommunication Union/ITU Telcommunication Sector

 

 

适用范围

Introduction The purpose of this Recommendation is to provide the stage 1 description of the method defined in Recommendation I.130 using the means given in Recommendation I.210. Supplementary services are described by a prose definition and description (step 1.1) and by a dynamic description (step 1.3). The application of the attribute technique (step 1.2)@ as defined in Recommendation I.140@ for supplementary services is for further study. This Recommendation describes the following Call Offering supplementary services: I.252.1 Call Transfer (CT) I.252.2 Call Forwarding Busy (CFB) I.252.3 Call Forwarding No Reply (CFNR) I.252.4 Call Forwarding Unconditional (CFU) I.252.5 Call Deflection (CD) (Note) I.252.6 Line Hunting (LH) Note ?C This service having been identified now requires further study; its description is not yet included.

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