The ``call announcement'' suffix is without effect on the set of a subscriber who has this protection.įrom any set in the system, a subscriber can program his set to ring at a predetermined time. This protection only concerns digital sets (40xx and 43xx). This function is particularly useful to protect a modem link (telefax, minitel. This protection is only removed after the validation of the parameter in control any forwarding carried out before this validation is operational.Ī set can be permanently protected against any call which generates a beep during a current communication (camp on call on busy set, intrusion). The subscriber that has this protection cannot be the destination of a forwarding (function prohibited). The over-ringing on a multi-line set is inhibited if there are several calls on the already busy set. For this facility, it is necessary that the set and trunk COS authorize it. The number may be displayed on the set or on the system console. The subscriber of a set can forward his calls to an external number using a prefix followed by the call number. This protection does not count if this set belongs to a hunting group of sets (PBX) and if it is called by the number of the hunting group. The subscriber is protected against call pick-ups by another set in the system.Ī communication is permanently protected against intrusion if one of the two correspondents has this protection in their facility rights COS (even if it is a priority call).Ī communication is permanently protected against intrusion if one of the two correspondents has this protection in their facility rights COS (except if it is a priority call).Īn "outgoing calls only" set is protected against any incoming call whether simple or in enquiry call. Name describing the Classes Of Service (COS) categoryįor each attribute: 0 for NO, 1 for YES, and % for any value. The telephone features to which the subscribers have right can be used with the help of prefixes and suffixes, or functions using these prefixes or suffixes (see PREFIX PLAN, SUFFIX PLAN AND NUMBERING PLAN). define the type of routing on going off-hook.protect sets against certain facilities,.authorize or prohibit the access of sets to certain telephone facilities,. The telephone service COS make it possible to: PHONE FACILITIES CATEGORIES PHONE FACILITIES CATEGORIES
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