Instruction manual

Hardware and Endpoints
INTER-TEL
®
5000 ADMINISTRATOR GUIDE – Issue 2.3, September 2007
Executive and Professional Display Speakerphones
Page 99
Executive and Professional Display Speakerphones
Each Executive and Professional Display endpoint has a built-in, integrated speakerphone that
allows on-hook dialing and handsfree operation on outside calls and inside (intercom) calls.
The speakerphone can be used in standard mode or in enhanced mode which allows for full-
duplex operation over a limited volume range (the range depends on trunk characteristics, typi-
cally the range is 1–3). Enhanced speakerphones are explained below.
The Executive and Professional Display endpoint’s speakers can also provide background
music if an external music source is installed and the speaker is used to receive pages.
A programming option can be used to disable the endpoint’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 code.
On certain handsfree-to-handsfree intercom calls, voice volume levels may cause feedback to
occur. If this happens, one station user should pick up the handset. Two display endpoints can-
not be in enhanced mode while on a call together; one endpoint must be off-hook to allow the
other endpoint to enter enhanced speakerphone mode. If both endpoints are on-hook, there is
no benefit to having one endpoint in enhanced mode.
Enhanced Speakerphones for Digital Endpoints
The following display and nondisplay digital endpoints have enhanced speakerphone capabili-
ties:
• Model 8500, 8520, and 8560
• Executive, Professional, Standard, and Associate Display
• Axxess and Eclipse Basic Digital
To use an enhanced speakerphone on a digital endpoint, the user establishes a call and presses
(the Special button) and then the Speaker button (or presses and enters the
Enhanced Speakerphone feature code, 310). There will be about one second of white noise at
this point. Both parties should avoid speaking during this white noise, which is used to cali-
brate echo-canceling circuitry. After the white noise, there will be a confirmation tone that both
parties will hear (except for Executive Display and Professional Display endpoint users who
will hear the tone, but the other party will not). Then the user will be connected in an enhanced
handsfree call. If the speakerphone cannot be calibrated correctly due to trunk conditions, the
enhanced speakerphone will not be enabled and the display will show
CANNOT ENABLE
ENHANCED MODE
.
It is normal for an outside party to hear a minimal amount of his or her own echo when speak-
ing to a digital endpoint in enhanced speakerphone mode. This is usually acceptable to most
callers on local calls and on most long-distance calls. However, on some T1 and long-distance
calls involving significant delays (for example, cross-country T1 calls, overseas calls or calls
via satellite), the amount of echo may be objectionable, and the enhanced speakerphone mode
should not be used on these types of long-distance calls.
If an enhanced speakerphone call is placed on hold and then taken off hold on an Executive or
Professional Display endpoint, it remains an enhanced speakerphone call. For all other digital
endpoints, if the call is placed on hold, the call is returned to standard speakerphone mode.
A station can have only one enhanced speakerphone call. For example, if an Executive or Pro-
fessional Display endpoint user makes an enhanced speakerphone call, puts it on hold, and
establishes another enhanced speakerphone call, the first call will be turned back into a stan-
dard speakerphone call.
∞
∞