Full Description

The present document specifies the stage one description of the Voice Group Call Service (VGCS) which allows speechconversation of a predefined group of service subscribers in half duplex mode on the radio link taking into accountmultiple mobile service subscribers involved in the VGCS call per cell.

The VGCS is applicable to all mobile stations in a certain network and area which have the technical capability and thecorresponding subscription, respectively, to participate in a VGCS call.

NOTE: It is not considered as requirement that normal GSM phase 2+ mobile stations will be able to be used forthis service.

The service is described from the service subscriber's and user's point of view; in particular:the procedure for normal operation with successful outcome;the action to be taken in exceptional circumstances;the interaction with other GSM services and features.The present document does not deal with the Man-Machine Interface (MMI) requirements, but makes reference to theappropriate Global System for Mobile Communications (GSM) specifications.

The present document defines a teleservice of the digital cellular telecommunications system GSM. Any interactionwith other services and/or networks not dealt with in clauses 7 or 8 are outside the scope of the present document.

Product Details

Edition: 8.2.1 Published: 07/01/2005 Number of Pages: 16 File Size: 1 file , 93 KB