Features and Specifications Manual D - 91
D
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IP Gateway System
D-24
FEATURE
DESCRIPTION
The D
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IP Gateway system converts traditional voice traffic and its
accompanying signaling for call setup and networking to IP for transport
across a managed IP network. The system allows workers at branch offices
or telecommuters to take advantage of the rich feature set of the company
central site Key Telephone System as though they were connected locally
without loss of functionality. Traditional voice traffic (plus call setup and
networking signaling) travel from the KTS to the Gateway where they are
converted to IP packets that are shipped to a 10 Mb (Gateway) or 10/100
(Gateway II) Ethernet LAN port. They are then picked up by the enterprise
router and sent to the Corporate WAN.
At the branch office, the local router receives the WAN signals and feeds them
to the local 10/100 LAN. From there they reach the D
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IP Branch unit that
converts the IP packets back to standard (TDM) voice signals for distribution
to attached Series E/Electra Elite telephones. The D
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IP Branch supports
up to 12 voice circuits. When the remote site is a telecommuter at home or
only a few workers, the remote IP/TDM conversion is performed by a D
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IP
Adapter that fits easily on the bottom of a standard D
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Series E telephone.
This system:
supports circuit-/packet-based Networks
allows mix and match IP-capable EXTender clients up to eight or 12
users
connects to the digital-line side of the Electra Elite KTS
allows virtual configuration, management, and troubleshooting of
EXTender clients from a central location
allows synchronous transmission
supports an asynchronous Terminal Adapter (TA)
allows encrypted user name and password on each port
supports call suspend mode on ISDN line with Asynchronous TA
supports IP Precedence and DiffServ QoS mechanisms
allows choice of network topologies and variable compression rates
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