Nortel BCM 3.7 Manual page 908

908 H
host system signaling
Also referred to as end-to-end signaling. Telephones can access a remote system or dial a
number on an different carrier by using host feature activation codes, such as Link, Pause
and Run/Stop.
hot desking
This is an IP telephone feature that allows a user to forward complete IP functionality
from one IP telephone to another one, even at a remote location until the feature is
deactivated. The feature is activated at the receiving telephone, but can be deactivated
with either IP telephone. Refer to the Telephony Feature Handbook for a description of the
feature and how to use it. The IP Telephony Configuration Guide describes how to set up
the feature. Note: Headset functionality is not forwarded by hot desking. Once the hot
desking is enabled, you need to press the Headset button on the target telephone to
re-enable the headset mode.
Hotline
This feature automatically calls a pre-assigned number when you lift the telephone
receiver or press the handsfree button. A Hotline number can be an internal or external
number. Assign Hotline under Capabilities, Hotline. (Services, Telephony Services,
System DNs)
HTTP proxy
See web proxy.
Hunt group
Hunt groups are groups of telephones that have been configured to answer all calls to a
Hunt DN. Call appearance on each telephone depends on programming. This feature
allows you to direct specific lines to specific groups of people, such as a sales group, or
technical group for a specific product.
ICCL
This MCDN networking feature piggybacks on the call initiation request and acts as a
check at transit PBX points to prevent misconfigured routes or calls with errors from
blocking channels.
ICMP
ICMP is a message control and error-reporting protocol between a host server and a
gateway to the Internet. ICMP uses IP datagrams, however, the messages are processed by
the TCP/IP software and are not directly apparent to the application user.
IETF
The Internet Engineering Task Force (IETF) is the committee that defines standard
Internet operating protocols such as TCP/IP. The IETF is supervised by the Internet
Society's Internet Architecture Board (IAB).
N0008589 3.3