Mitel MIVOICE OFFICE 250, Руководство по установке и администрированию

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Phones
513
Speakerphones
Executive Display and Professional Display Speakerphone
Each Executive Display and Professional Display phone has a built-in, integrated speakerphone
that allows on-hook dialing and handsfree operation on outside calls and inside (intercom) calls. The
Executive Display and Professional Display phone speakerphone can be used in standard mode or
in enhanced mode. See “Enhanced Speakerphones for Digital Telephones” on page 513.
The Executive Display and Professional Display phone speaker can provide background music if
an external music source is installed. As well, the phone speaker can be used to receive paging
messages.
A programming option based on the speakerphone type can be used to disable the phone’s
speakerphone capabilities. Or, the user can disable the speakerphone for intercom calls using the
Handsfree On/Off and/or Ring Intercom Always On/Off feature codes.
Other Digital Telephone Speakerphones
Standard and Associate Display, and digital telephones have built-in speakers and microphones that
allow the user to answer intercom calls handsfree, dial while on-hook, monitor calls, and listen to
background music.
These phones can be programmed in individual phone programming to allow the use of system
resources for standard and enhanced speakerphones. See “Enhanced Speakerphones for Digital
Telephones” on page 513. To provide standard and enhanced speakerphone resources for Standard
and Associate Display, and digital telephones, the system must be equipped with a DEI and at least
one DEM-16.
Each time a speaker/microphone phone user presses the Speaker button while on-hook, the
standard switched speakerphone is activated, and the DSP resource is assigned to that phone for
the length of the call. If a phone user requests the speakerphone function when speakerphone
resources are not available, the user hears reorder tones, and the display shows
NO SPKRPHN AVAIL
STAY OFF HOOK
. If the user attempts to change to the speakerphone and hangs up during a call
when speakerphones are unavailable, the call will be forced into a monitor-only mode. The user
hears the other party but is not allowed to transmit to them. In this mode, the user’s MUTE button
is lit, and the display shows
NO SPKRPHN AVAIL COME OFF HOOK
. Pressing the lit MUTE button
results in a burst of reorder tone, and you must lift the handset to speak.
Enhanced Speakerphones for Digital Telephones
Enhanced speakerphone mode allows for full-duplex operation over a limited volume range. The
range depends on trunk characteristics; typically, the range is 1–3.
NOTE
The network allows handsfree intercom calls when calling from one node to another, unless
the call camps on to the node before being sent to the other node.
NOTE
On certain handsfree-to-handsfree intercom calls, voice volume levels may cause feed -
back to occur. If this happens, one phone user should pick up the handset.