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Users cannot access the following system features: Account Code
Entry, Background Music, Caller ID Name Display, Caller ID Inspect,
Do Not Disturb, Exclusive Hold, Manual Signaling, Privacy, Save
Number Redial, VMS Cover, Voice Interrupt On Busy, Voice Interrupt
On Busy Talk-Back or Voice Mailbox Transfer.
Do not use Forced Account Code Entry with a standard phone,
because the phone will not be able to get dial tone and make calls.
A display on a standard phone will not show Caller ID information or
system messages.
Feature Phones
A feature phone is a standard phone that has feature buttons in addition to the
regular 12-key dial pad. For example, there are feature phones that have
programmable auto dial buttons, last number redial buttons, hold buttons, and
built-in speakers. Even though some feature phones have buttons like those
provided on system phones, they may not work. Refer to the feature phone’s
documentation for more information on what these phones can do.
Combination Extensions
A combination extension is an extension with two devices connected to
it—either two standard devices, or a system phone and a standard device (but
not two system phones). (For instructions on how to install a combination
extension, see the PARTNER II Communications System Installation guide.)
The following are examples of useful combination extensions:
System phone plus standard phone, for power failure backup on
extensions 10, 16, 22, 28, 34, 40, 46, and 52
System phone plus answering machine
System phone plus fax machine
System phone plus headset
System phone plus an external alert (such as a bell or chime).
Using the telephones in a combination extension is fairly simple. The main point
to understand is that the two telephones share a single extension in the same
way several home telephones share a single line. A system phone works like it
always does and a standard phone works like it always does when connected to
the system. Only one phone or device can be used at a time, unless you want
to join the two on a single call (the same way two people can pick up the same
call on different telephones at home). Furthermore:
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Both phones share the same extension number.
Both phones share the same voicepath; that is, when either phone is
busy, the extension is busy.
Calls ring at both phones.
3-10 Learning About Telephones