Avaya IP Line User Manual Page 235

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Features Page 235 of 910
IP Line Description, Installation and Maintenance
Virtual Office capabilities
Virtual Offices provides the following capabilities:
1 A network-wide connection server (Gatekeeper) is equipped to provide
addressing information of call servers, based on a user’s DN.
2 A key sequence is entered at an IP Phone to initiate the login sequence.
Then the current network DN and a user-level password is entered. The
password is the Station Control Password configured in LD 11. If a
SCPW is not configured, the Virtual Office feature is blocked.
3 A user logs out when leaving the location.
For more detailed information about Virtual Office, see IP Phones:
Description, Installation, and Operation (553-3001-368).
Branch Office and Media Gateway 1000B
The Media Gateway 1000B (MG 1000B) provides a means of extending
CS 1000 Release 4.5 features to one or more remotely-located branch offices
using the Branch Office feature. A branch office is a remote location in the
network where IP Phones, PSTN access, and TDM telephones are located.
Definition
Branch Office is a feature set of the equipment and software that a secondary
location needs to centralize the call processing of its IP-based
communications network. The Call Server at the main office provides the call
processing for the IP Phones in both the main office and the MG 1000B in the
branch office location. The MG 1000B in the branch office location provides
access to the local PSTN.
Connections
The MG 1000B is connected to the main office over virtual trunks on a WAN
or LAN. IP Phone calls and IP network connections are controlled by, and
come from, the main office. If the main office fails to function, or a network
outage occurs, the Small System Controller (SSC) in the MG 1000B provides
service to the IP Phones located in the branch office location. The IP Phones
then survive an outage between the MG 1000B and the main office.
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