STD Call Ring Termination in Day Mode
     
 
In the Day mode, an in-coming call on programmed trunk lines will make a different set of extensions ring one after the other, the trunk can be programmed for detecting STD call from Ring cadence or CLID on CLID Detect enabled trunk. Each extension rings, with a different cadence, for number of rings programmed for that extension as ring switch count, before another takes over. This set of extensions (max. 4) can be different for each trunks line and is called STD Call Service Group for that trunk line. To programme a service group dial :

Password +  2 1 Trk Ext Ext Ext Ext

Where, Trk. is Trunk access code i.e. 27, 28....etc. and Ext. is Extension.

For example, if you want extension 31, 33 and 35 to ring in sequence when there is an in-coming call on trunk no. 27 which is STD call, then dial,

Password +  2 1 2 7 3 1 3 3 3 5

When there is an incoming call on trunk line 27, the call will first ring extension 31, if it is busy it will automatically go to extension 33 which, if free will start ringing. If nobody picks up till ring switch period for that extension, the ring will go to extension 35, and then back to 31, and so on. Similarly, service groups can be set for the other trunk lines.

The STD detect can be programmed by 233 programming and in this mode the DISA is bypassed for that trunk. The CLID direct termination will precede the STD Detection by CLID and the call will be terminated to CLID direct termination extension. In case all extension are busy in a service group the will terminate as a parked call or In-coming trunk queuing on the first extension in the list with no call parked on it.

Note: Care should be taken in allocating Extn. Nos. as per the exchange model i.e., for 204, 206,....616 the Nos. are 30,31,32...45.

   
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