
The installer must map a telephone button for each personal intercom that is to appear and, if
desired, map a status button for the user to switch between the types of monitoring. Also, she or he
must enable station monitoring as a class of service feature and assign that class of service to those
telephones where monitoring is required.
Intercom Hunt List
The installer can group up to eight intercom numbers together at an individual telephone to form an
intercom hunt list. The eight numbers can include one personal intercom number and seven group
intercom numbers or eight group intercom numbers.
When someone calls a telephone and it is busy, the call will go to the first idle number in that
telephone’s hunt list and then ring every telephone that has access to that number. An outside line
call to a busy telephone will always go to the hunt list; however, an intercom call will not. To make
an intercom call route to the hunt list, the installer must include the personal intercom number of that
telephone in the hunt list. The system will not allow you to assign a group intercom number to more
than one hunt list at a time.
When a user has set his or her telephone to forward just prime line and personal intercom calls, those
calls will forward while any other calls to that telephone will go to the hunt list. When a user has set
his or her telephone to forward all calls, then all calls forward and none go to the hunt list.
Also refer to the discussion titled Feature Renumbering.
Intercom Time-out
Should the user select the intercom for use and then perform no dialing or other action, the intercom
will time-out after 10 seconds (at default) and return the telephone to an idle state.
Intercom Call Progress Tones
Internal call progress is marked by the following special tones: Dial tone sounds steady; ring back
tone sounds one second on and three seconds off; tone signaled internal call sounds a two-tone burst
every four seconds at a called station and returns to the caller as ring back; voice signaled internal
call sounds a single tone burst at a called station and returns to the caller as two tone bursts; busy
tone sounds one-half second on and one-half second off at the calling station, and do not disturb tone
sounds a fast busy tone when the called station is in the do not disturb mode. (The system only
supplies OPX ports with the regular busy tone since fast busy tones could interfere with the
operation of some accessories that can be connected to these ports).
Intercom Inter-Digit Dialing
A timer begins timing out after the dialing of each number during intercom number dialing. It also
begins a time-out whenever the station user accesses the intercom number path and does not dial any
digits. When the timer times out, the system returns the station to an idle state.
110 – Understanding the Features
GCA40–242 General Description
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