when a did call comes in from the outside whether it comes in on a PRI, channelized T1, or DID card the MICS accepts the digits that are being sent to it from the telco (as DTMF in the case of channelized T1 and DID or via the data channel in the case of PRI) The MICS then only looks at the last X digits as programmed under system programming >>received digit length. these digits are then compared to the digits programmed in target line programming (lines 145 up to 272 for software versions up to 6.0 and 157 to 284 for 6.0 and later, slighty larger for XS systems) at this point the incoming call is assigned to the target line and will follow trunk line programming (ring the primary DN for the target line, follow line assignments in terminal and set programming, follow hunt group programming, be answered according to auto attendent programming in the voicemail/aa system, or be answered by a particular call center group in call center programming) or a variation of the possible programming.
when the call is presented to the phone set the display will tell you how the call came to be presented to the phone for the first couple of rings, you can also check feature 811 at the phone to see what trunk the call came in on along with some other information (try it out and see how much info you get on your system with a test call)
you will probably find that the target line is assigned to both phones under terminal and set programming but also look at what the prime set in in line programming.
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Hill?? What hill??
I didn't see any $%@#(*$ Hill!!
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JerryReeve
Communication Systems Int'l
com-sys.com