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Install and configure ITG ISL Trunk node
553-3001-202 Standard 1.00 April 2000
4 Define Node capability for the destination node.
The default setting is SL1, which supports MCDN features. The Node
capability field defines the D-channel protocol used by the destination
ITG ISL Trunk node. The protocol must match the protocol configured
in LD16 in the route data block at the IFC prompt with respect to SL1
vs. ESGF or ISGF QSIG interface (IFC) and in LD17 at the IFC prompt
under ADAN DCH. In LD 16, if SIGO is set to STD, then you must
select the SL1 node capability. If SIGO is set to ESN5, then you must
select SL1ESN5 node capability. In a mixed ESN5 and non-ESN5
network, you must configure an ESN5 prefix for the non-ESN5 IP
telephony gateways by using the “esn5PrefixSet” command from the
ITG shell CLI. See “Change default ESN5 prefix for non-ESN5 IP
telephony gateways” on page 223.
The choices are SL1, SL1 ESN5, ESIG and ISIG for networks
consisting of Meridian 1 large systems. For networks that include
Meridian 1 small systems, the choices are SL1 or SL1 ESN5.
In addition to ITG ISL Trunk nodes, the IP telephony trunk network may
contain ITG Trunk 1.0 Basic Trunk nodes or Nortel Networks IP
Telephony Connection Manager. Use H323 V2 node capability for
these nodes.
Qualit
y
of service
The default setting enables Quality of Service monitoring. QoS
monitoring allows new calls to fall back to alternate circuit switched
trunk routes when the IP network Quality of Service falls below the
configured threshold. If you change the default setting and disable
QoS monitoring, then the ITG trunk node attempts to complete new
calls over the IP network regardless of the IP network QoS. You can
still have alternate routes but ITG Trunk only uses them if the
D-Channel connection to the local ITG Trunk node fails, or if the
destination node fails to respond, or if the destination node responds
that all trunks are busy.
5 To disable QoS monitoring of a destination node, uncheck the Enable
Quality of Service (QoS) monitoring checkbox.
6 Slide the Quality of Service control bar to set the QoS level. The default
setting is 3 (=Good).
See “E-Model” on page 56 and Table 24, “ITG QoS levels,” on
page 143 for more details on Quality of Service levels and MOS
values.