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8520 Telephone User Guide – Issue 13, September 2009 Page 27
Call Features
Call Features
The following sections describe call-related features.
Using Handsfree Mode
You can use Handsfree Mode to activate the speakerphone.
To use Handsfree Mode:
With the handset on-hook, dial 319. HANDSFREE MODE ON appears on the display.
Dial 319 to turn Handsfree Mode off.
Enhanced Speakerphone Mode
The Enhanced Speakerphone Mode
1
improves transmission quality while on a speakersphone
call over a limited volume level (the range is typically 1 to 3).
To enable enhanced speakerphone mode while on a call, do one of the following:
• Press (Special), and then press (Speaker).
• Press (Special), and then dial 310. The speakerphone will return to standard mode
when you end the call.
There will be about one second of white noise while the speakerphone circuitry is calibrated to
the call. Both parties should avoid speaking during this white noise. If the speakerphone cannot
be calibrated correctly, the display shows CANNOT ENABLE ENHANCED MODE.
Using Ring Intercom Always
If another extension has Handsfree Mode enabled for incoming internal calls (see the previous
section), you can use Ring Intercom Always to override Handsfree Mode on the extension,
requiring the called party to pick up the handset to answer your call.
To override Handsfree Mode for the current call:
1. Before you enter the extension number, press #. RING EXTENSION NUMBER appears.
2. Dial the extension number.
To use Ring Intercom Always to always send non-handsfree calls:
With the handset on-hook, dial 377. RING IC ALWAYS ON appears. Dial 377 to turn the
Ring Intercom Always off.
NOTES
The Ring Intercom Always feature prevents calls from being answered in Handsfree
Mode (see the following section).
You cannot use Handsfree Mode if you are using a headset, or if you have more
than one phone assigned to an extension number.
1. This feature may or may not be enabled for your system.
NOTE
Two display phones cannot be in Enhanced Speakerphone Mode while on a call
together; one phone must be off-hook to allow the other phone to enter Enhanced
Speakerphone Mode.
On some long-distance calls the outside party may hear their own echo when
speaking. If the amount of echo is objectionable, do not use the Enhanced
Speakerphone Mode.