5
Telephone Operating Instructions
The following paragraphs provide general information concerning terminology, system
timeouts, user programmable features, and basic telephone operating procedures.
The following terms apply to the telephone operating procedures in this section.
Extension:
This refers to an extension number and may correspond to a single-line
telephone, or a button on a digital telephone or Type 3100 telephone.
Prime Extension:
When an extension number has more than one appearance in the
system, one appearance can be programmed as the primary extension number. This
appearance can be a button on a digital telephone or BEM, or a Type 3100 telephone or
Type 3100 DSS/BLF console, the principal line on a single-line telephone, or a logical
button on a telephone. When a feature such as call announce, station hunt, or directed
call pickup is used, this primary appearance of the extension number is the only location
that responds. When the primary appearance is ringing, all other appearances will
indicate busy. When the telephone with the primary appearance is in the do-not-disturb
mode, all other appearances will indicate ACTIVE.
Second Dial Tone:
Second dial tone, also called transfer hold or distinctive hold dial
tone, consists of three alternations of system dial tone, followed by a steady system dial
tone. You hear second dial tone when you press the TRANSFER HOLD (XFER) or
CONFERENCE HOLD (CONF) button. Depending on system programming, it may also
be used to indicate a waiting message.
Hookswitch Flash:
Holding the hookswitch down for approximately one second, then
releasing it sends a signal to the Central Office to get dial tone after a call has been
terminated by the far end or to initiate a feature. Some telephones have a FLASH button
which can be used instead of pressing the hookswitch. It is much more reliable since it
requires no guessing on the part of the user of the length of time to operate it.
Most system features can be accessed either by dial access code or feature button. A
feature for which a telephone has no button programmed can be accessed by dial code,
provided it is allowed by the telephone’s class-of-service. Table A lists the system default
dial access codes.
Dial access codes are programmable and may be any combination of the digits 0 through
9, #, ✱, A, B, C, and D. If the digits A, B, C, and D are used, buttons for these functions
must be programmed on the multibutton telephones from which the codes will be dialed.
Digits other than 0 through 9 should only be used if all telephones using dial codes use
tone (DTMF) dialing.
All features are assigned time limits to aid in system efficiency. A feature operation must
be completed within the specified time limit. or the selected button or feature is released
for someone else to use or, in a feature such as call forward or hold, the next step in the
sequence begins. If the button or feature is released, the system returns reorder tone.
The tones and signals heard during telephone operation are described in Table B.
General Operating Information
Common Terms
Feature Access
Audible Call Indications
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