After a series of power outages and brown outs over the weekend, our system has lost all of the predialed #'s and only one phone in the whole office (10 phone) rings.

Hello. Often the aftermath of a power outage is a power surge. If your phone system is not surge protected, this is the likely culprit. The damage done by a surge or several surges can only be assessed with a thorough diagnostic exploration. This has to be done by a technician with the proper diagnostic equipment and know how. j.

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Hello,

Sounds like the system defaulted programming.

Depending on the type of prostar 616 the only ringing station would be 1(or 21) with the porstar or 4(or 24) with the prostar plus.

To change the ringing on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down, enter #20 the screen should say MMC

DISABLED
enter in 1 2 3 4 1 # (that enables programming)
enter in #62 the screen should say day ring assn
press the line you wish to program
press the buttons for the extensions that you wish to ring (the ones in the right next to the handset)
press # when finished with the line
repeat steps 2 through 5 for the remainder of the lines you wish to change
press # when finished.

To program system speed dial numbers, you need the customer programming enabled (see the first part of programing ringing)
press the ALM/SD button
dial the 2 digit speed dial code 10-98
dial the telephone number to be stored in that speed dial bank
press ALM/SD to store the number

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