Interoperability with IP Trunk3.01 (MPLR17662 patch) 433
Since there is no adverse effect caused by installing the patchon IP
Trunk3.0, and upgrading a network on a node-by-node basis simplifies
maintenance greatly,Nor tel recommends that the second alternative be
used.
The nodes must use the Nortel H.323 Interoperability format or use a
Gatekeeper to resolve destinations.
The applicability of MPLR17662 is limited in certain situations:
The patch is required if the format of the received SETUP message is
CSE, with or without a Gatekeeper. If the format received is not CSE,
the patch is not required.
The patch is not required for ITG Trunk2.x.26G or ITG Trunk 2.x.25
interworking with IP Trunk3.01.22, as these older versionsof ITG Trunks
do not support the CSE format.
The patch is not required when upgrading afew IP Trunks to IP Trunk
3.01.22 to interoperate with other nodes running IP Trunk 3.00.53, ITG
Trunk2.32.26G, and ITG Trunk 1.0.43, and the format received is
SL1, SL1 ESN5, or QSIG. If the format receivedis CSE, which is not
supported on ITG Trunk,the patch is required.
For pairs of nodes in this scenario, the following applies:
IP Trunk3.00.53 interworking with 3.01.22 - the patch is required if the
CSE format is used.
IP Trunk2.32.26G interworking with IP Trunk3.01.22 - no patch is
required.
IP Trunk1.0.43 interworking with IP Trunk 3.01.22 - no patch is required.
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
Copyright© 2007, Nor tel Networks
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