Nortel ISDN Signaling Link, Description, Installation And Operation

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ITG Engineering Guidelines Page 135 of 378
ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation
ITG Trunk DSP profile settings
Codec types
You can configure the following codecs with ITG Trunk 2.0, ITG ISDN
Signaling (ISL) Trunk:
• G.711 (A and Mu law)
• G.723 (5.3 kb/s and 6.4 kb/s)
• G.729
• G.729A
You can enable/disable VAD for all of these codecs using the MAT ITG
interface.
You can select from three DSP profiles on the ITG Trunk card. Profile 1 is
the default setting.
• Profile 1: G.711, G.729A, Fax
• Profile 2: G.711, G.723.1, Fax
• Profile 3: G.711, G.729, Fax
Figure 19
Basic setup of the ITG system
Meridian 1 ITG node with one
leader, one backup leader, and
six follower cards
MAT client with ITG
management software
WAN
WAN
IP
Router
WAN WAN
WAN
Router
High
Speed
Link
IP
V
P
S
Management
subnet
V
P
S V
P
S V
P
S V
P
S
V
P
S V
P
S
Voice subnet
Hub
Ethernet
V
P
S
C-LAN
E-LAN
T-LAN
Hub
553-9184