Nortel BCM 3.7 Manual page 906

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system (local gateway) and remote system (remote gateway) so the system can correctly
receive and send information over the trunk. If the network has a Gatekeeper application,
this application determines where data packets go, and it is not necessary to configure the
remote gateway in this case. However, you do need to send the local system parameters to
the Gatekeeper administrator.
ground start trunk
Ground start trunks provide the same features as loop start trunks. Use this type of trunk
when the local service provider does not support disconnect supervision for the digital
loop start trunks. By configuring lines as ground start, the system can identify when a
caller hangs up the telephone at the far end. Ground start trunks are available only on a
Digital Trunk Interface module (DTM).
group listening
This feature allows you to have other people in your office hear a caller through your
telephone speaker. The caller hears you when you speak into the receiver and cannot hear
other people in the office. (FEATURE 802)
You can cancel Group Listen for the current call. Group Listen cancels automatically
when you hang up the Group Listen call.
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H.323
H.323 is the standard for using IP to send voice and video within intranets and on the
public Internet.
handsfree
A feature you can use to make calls through your telephone without lifting the telephone
receiver. Activate Handsfree under Capabilities (Services, Telephony Services, System
DNs). When you activate handsfree, Business Communications Manager assigns a
handsfree/mute button on the lower right button of the legacy digital phones. The 7208
and 7316 have separate mute buttons, so only handsfree is assigned to the lower right
button. The 7316E has both a separate mute button and a separate handsfree button located
under the dialpad. The 7000 and 7100 digital phone, the 2001 IP telephone, and portable
handsets do not have this feature as they do not have the necessary speakers and
microphones. IP 2002, 2004 telephones do allow handsfree. They, too, have a separate
handsfree button (beside the handset) and mute button (under the volume bar).
Handsfree volume note: The telephone volume level returns to the default volume level
set on the telephone after each handsfree call. This is not configurable in system
programming.
handsfree (HF) answerback
This feature automatically turns on the microphone at a telephone that receives a Voice
Call so that the person receiving the call can respond without lifting the receiver. Activate
HF Answerback under Capabilities (Services, Telephony Services, System DNs).
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