System Phone In Combination Extension Does Not Work; Poor Transmission Quality On Modem; No Music On Hold - AT&T PARTNER Installation And Use Manual

System Phone in
Combination Extension Does Not Work
Possible Cause 1: Standard device is plugged into the wrong jack.
What to do: Check the combination extension:
If you are using a direct connection to connect the devices, make sure the standard device
is plugged into the correct jack on the bottom of the phone—see "Combination Extensions"
in Appendix C for instructions.
If the system phone works properly, the problem is solved.
If the phone still does not work, call the AT&T Helpline.*
If you are using a bridging adapter to connect the devices, make sure the standard device
is plugged into the correct jack—see "Combination Extensions" in Appendix C for
instructions.
If the system phone works properly, the problem is solved.
If the phone still does not work, go to Possible Cause 2.
Possible Cause 2: Wrong cord and bridging adapter used to connect the standard phone.
What to do: First, unplug the bridging adapter from the wall jack. Then, unplug the
system phone from the adapter and plug it into the wall jack.
If the system phone works properly, either the cord or the adapter must be replaced.
(Use a D4BU telephone cord and an AT&T 267F2 bridging adapter.) Call the AT&T
Helpline* for details.

Poor Transmission Quality on Modem

Possible Cause: A high-speed modem is connected, through an extension jack on a
system module, to a standard central office telephone line; but the line quality is not
sufficient to generate a clear signal when the modem transmits through the system
interface.
What to do: Either connect the modem directly to the network interface jack for a line, or
contact your local telephone company for information about upgrading line quality.
If the device works properly, the problem is solved.
If the problem remains, call the AT&T Helpline.*

No Music On Hold

Possible Cause 1: Music on Hold coupler is not connected to extension port 15.
What to do: Connect the Music on Hold coupler to extension port 15. See Appendix C for
instructions.
If the device works properly, the problem is solved.
If the device still does not work, go to Possible Cause 2.
*
In the continental U.S., help is available at 1 800 628-2888. Outside the continental U.S., call your local
AT&T Authorized Dealer.
6-8 Troubleshooting