AT&T Partner II - Manual (Page 133)

In Case of Difficulty
If you should have a problem with your premises equipment, you may be able to
solve it yourself by following the appropriate troubleshooting procedures
described in this appendix. In the U.S., AT&T provides a toll-free customer
helpline 24 hours a day at 1 800 628-2888.
For assistance in Canada, contact your local AT&T authorized dealer.
If you call, have the following information ready so that the representatives can
better help you:
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■
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The kind of equipment controller you have (for example, PARTNER II
Centrex, Release 1)
The number of lines and extensions in your system
The model number of the problem phone, if applicable (located on the
upper right-hand corner of the phone—MLS-34D, MLS-12D, MLS-12,
MLS-6, or MLC-6).
If you followed a troubleshooting procedure and need more help, tell the
representative what you did.
Power Failure Operation
When power to the equipment controller is cut off, the first line jack on each 206
module automatically connects to the first extension jack on the module. For
example: line jack 01 connects to extension jack 10; line jack 07 connects to
extension jack 16; line jack 13 connects to extension jack 22; and line jack 19
connects to extension jack 28. This allows the equipment controller to maintain
telephone service during a power outage.
To make and answer calls during a power failure, you must use a standard
touch-tone or rotary telephone connected to extension jack 10, 16, 22, or 28.
For this reason, it is strongly suggested that you have a standard telephone
connected—either directly or by a 267F2 bridging adapter—to the first
extension jack of every 206 module (extension jacks 10, 16, 22, and 28). During
a power failure, only standard phones can make and receive calls.
The equipment controller can stay programmed for approximately four days
after it stops receiving power. After four days elapse, all of the equipment’s
programmed settings return to the factory settings.
C-2 Maintenance and Customer Support