Universal Extension Support - Nortel CS 1000 User Manual

14 Product overview

Universal extension support

DECT handsets subscribed on DAPs are external to Communication
Server 1000. The Communication Server 1000 does not control the state
of DECT handsets. Therefore, the Communication Server 1000
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A DECT handset subscribed on a DAP cannot use the same range
of features available to analog, digital, or UNIStim IP phones on the
Communication Server 1000.
Configuration and status information for subscribed DECT handsets is
provided using the Universal Extension (UEXT) feature on the Call Server.
No Associated Telephone (AST) or Computer-Telephone Integration (CTI)
capabilities are available for SIP DECT at the present time.
Each DECT handset has a local Directory Number (DN) in Communication
Server 1000. Use this local DN to subscribe the corresponding DECT
handsets on the SIP DECT system through SIP DECT manager. SIP
DECT manager is available on the server where you installed the DAP
controller.
Configure the UEXT associated with a DECT handset as follows.
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Copyright © 2008-2009 Nortel Networks
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The network must support Quality of Service (QoS) and IP
connectivity throughout the Campus.
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Routers must support IP multicast routing.
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The IP multicast address for SIP DECT must be the same in all
subnets.
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multicast Time to live (TTL) must be greater than 1.
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In the SIP DECT configuration, you must enter the subnet mask for
all networks, for example, 255.255.248.0.
cannot detect individual key-presses on DECT handsets
cannot control cadences on DECT handsets
cannot detect if a DECT handset is switched off and on
cannot control the handset display content
For the Primary DN of the UEXT (key 0 SCR), enter the local DN
associated with the DECT handset.
For the Target DN of the UEXT (key 1 HOT P), enter the digits
required to access the SIP route (SIP Trunks) configured to access
DAPs, plus the local DN of the handsets. This consists of one of the
following.
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009