AT&T MDC 9000 Specifications download pdf (Page 51)

Standard Telephones

In addition to system phones, you can connect industry-standard touch-tone or

rotary dial phones—and even some feature phones (which have built-in calling

features)—directly to the system. You can also combine standard phones on

the same extension with system phones or other devices, without using

expensive adapters or connectors.

Standard phones can do many of the things that system phones can do, and

you can save money by using them in certain situations when a system

telephone is not needed. Follow these guidelines when using standard phones:

■

Use standard phones as power failure backups. In the event of a power

failure, standard phones at extensions 10, 16, 22, and 28 connect to lines

1, 3, 5, and 7, respectively, for continued operation; but system phones

will not work. You can connect standard phones in combination with

system phones at power failure extensions, or you can simply keep spare

standard phones at those extensions to serve as replacements in case of

a power failure.

To use a system feature, press [

] (in place of [

Feature

] used on system

phones) followed by its two-digit code when you hear intercom dial tone.

For features that use [

Intercom

] on system phones, dial only the two-digit

code when you hear intercom dial tone. (Instructions for using these

features on standard phones are included in Chapter 5, “Feature

Reference.”)

To use a Speed Dial number, press [ # ] followed by its two-or three-digit

code when you hear intercom dial tone. (For details, see “Personal

Speed Dial Numbers” and “System Speed Dial Numbers” in Chapter 5.)

If Call Waiting (#316) is assigned to an extension with a standard phone

connected, users hear a call waiting tone (two beeps) when a second call

comes in to the extension. The call waiting tone is not repeated.

Use the switchhook on a standard phone to place calls on hold, park a

call, transfer a call, answer a call waiting call, or set up a conference call.

(For details, see “Using the Switchhook” on the next page, or “Hold,”

“Transferring Calls,” “Answering Calls,” and “Conference Calls” in

Chapter 5.)

If the standard phone has a message waiting light, use it to notify users of

messages. (For details, see “Message Light On” and “Message Light

Off” in Chapter 5. For a list of supported phones, see “Standard

Telephones” in Chapter 1.) Alternatively, if you have a voice messaging

system, the light is used to indicate that a message has been left in your

mailbox. On a standard phone, the message light flashes when the

phone is idle to indicate that the extension has received a message.

3-8 Learning About Telephones

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AT&T MDC 9000 Specifications Page 51

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