Synapse Installation Guide Back to Contents
Glossary 163
grounding: An electrical ground connection that minimizes interference, reduces the risk
of equipment damage due to lightning, eliminates electrostatic buildup, and helps protect
people who service the equipment.
Group Mailbox: Provide general delivery of Voicemail messages to a group within an
organization. Only subscribers can access these Voicemail messages.
hard key: Any physical key on the Deskset, Cordless Handset or Gateway. Examples
include MENU and 1 on an SB67020/025 Deskset; PHONE and 1 on the SB67040
handset; and SELECT and CANCEL on the SB67010 Gateway.
hard reset: An action that restores factory default settings.
Hold announcement: A recorded message to play while calls are on hold. It can be
combined with music on hold.
hub: A network hub or repeater hub is a device for connecting electronic devices, making
them act as a single link.
hunt group: A telephone company feature that allows calls to a busy phone number to
roll over to the next available line or a Synapse system Ring Group feature where
unanswered calls are forwarded to the next available extension in a predefined group of
extensions.
icon: A small picture in the display that presents status information.
Idle: The mode of a device when it is not involved in call or call setup activity.
interference: Electrical signals close by that cause degraded audio performance for
cordless devices.
internal call: A phone call placed from one of your Synapse system extensions to
another extension.
IP address (Internet Protocol address): An individual numeric identification assigned to
devices on your LAN.
ISDN (Integrated Services Digital Network): A set of communication standards for
simultaneous digital transmission of voice, video, data, and other network services over
the traditional circuits of the public switched telephone network.
IT Controller: Part of a computer network infrastructure that connects different parts of
the network, so that different LANs and subnets can exchange information. Also known
as a backbone network or a network backbone.
key beep: When enabled, pressing a key plays a tone.
LAN (Local Area Network): A communications network that allows data devices to
communicate with each other.
LCD (Liquid Crystal Display): The screen that provides instructions and feedback.
LED (Light Emitting Diode): A small light on a device that indicates status.
link loss: Occurs when the connection between two RF devices fail, such as between the
SB67030/031 Deskset and the optional Cordless Headset or Cordless Handset.
link-local address: A local address used for network address creation when no external
source of network addressing information is available.
live dial: Dialing after the phone is off hook.
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