Nortel BCM 3.7, Manual

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H 907
Programming Operations Guide
hard disk
A data storage device that uses rigid magnetic disks permanently installed inside the
computer CPU or a portable unit.
HDLC
High-level Data Link Control (HDLC) is a group of protocols or rules for transmitting
data between network points or nodes. Data is organized into a unit, called a frame, and
sent across a network to a destination that verifies its successful arrival. The HDLC
protocol also manages the flow or pacing at which data is sent. HDLC is one of the most
commonly-used protocols in Layer 2 of the industry communication reference model,
Open Systems Interconnection (OSI).
held line reminder
A telephone rings and displays the message
On hold: LINENAM
when you place an
external call on hold for programmed period of time. Set the Held Line Reminder under
Feature settings. (Services, Telephony Services, General Settings).
High-level Data Link Control
See HDLC.
HLC
The Home Location Code (HLC), also known as a Location code (LOC) is used as part of
a UDP dialing plan to identify each node on a private network.
Hold button
Use this button to interrupt calls so that you can perform another task without
disconnecting the caller.
Home Location Code
See HLC and location code.
hookswitch Flash
See Link.
hospitality services
These features allow a hostelry to use room and desk telephones to communicate
housekeeping and alarm information between each room and the front desk (admin
telephone), including setting call restrictions at different levels for each room. The
telephones also have all configured system call capabilities.
host name
In networking, this is the name of a computer that provides services, such as database
access, to other computers or Business Communications Manager base units in the
domain. Computers with a host name also have a unique IP address. Because the Business
Communications Manager base unit has a unique IP address, the Business
Communications Manager base unit qualifies as a host.