Enhanced speakerphones for digital phones – Inter-Tel CS-5400 User Manual

Page 121

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Hardware and Endpoints

INTER-TEL

®

CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.1 – August 2005

Executive and Professional Display Speakerphones

Page 103

A programming option 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 code.

Enhanced Speakerphones for Digital Phones

The following display and nondisplay digital phones have enhanced speakerphone capabilities:

Model 8500, 8520, and 8560

Executive, Professional, Standard, and Associate Display

Axxess and Eclipse Basic Digital

To use an enhanced speakerphone on a digital phone, 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 phone 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.

If an enhanced speakerphone call is placed on hold and then taken off hold on an Executive or
Professional Display phone, it remains an enhanced speakerphone call. For all other digital
phones, if the call is placed on hold, the call is returned to standard speakerphone mode.

A station can only have one enhanced speakerphone call. For example, if an Executive or Pro-
fessional Display phone user makes an enhanced speakerphone call, puts it on hold, and estab-
lishes another enhanced speakerphone call, the first call will be turned back into a standard
speakerphone call.

A digital phone user can set up a conference and then, once it is established, presses the

(Special button) and Speaker (or presses

and enter the Enhanced Speakerphone

feature code, 310) to have an enhanced speakerphone call in the conference.

NOTE

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 phones cannot be in enhanced mode while on a call together; one
phone must be off-hook to allow the other phone to enter enhanced speakerphone
mode. If both phones are on-hook, there is no benefit to having one phone in
enhanced mode.

NOTE

It is normal for an outside party to hear a minimal amount of his or her own echo
when speaking to a digital phone 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.

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