Nortel Networks 7400 - Manual (Page 106)

Customer Profile
• ITG Line is the right choice for any business that
wants a mix of IP, digital and analogue sets on a
tried and tested office communications platform
• Existing Meridian 1 customers – IP enabled
Meridian 1 represents the smoothest, most cost
effective route to IP telephony for the installed
base of 43 million Meridian 1 users
• Early adopters who want the latest technology on
the world’s number one system
• Companies that want to expand their network
either by adding new sites or adding new users
• Companies that have a large number of adds,
moves and changes
• Remote workers - users that need to access their
corporate data and voice services in exactly the
same way, in the office, at home, or on the road
Key Points
• A highly distributed connection management
system that consolidates the sophisticated
intelligence, complex call/connection
management and evolving standard protocol
support that is required for delivering a robust
and scalable Internet telephony solution
• A Nortel Networks solution that supports a rich
set of telephony features traditionally found on
PBX and Key Systems, along with standards-based
IP networking support of H.323 protocol that
provide the link between IP and the traditional
telephony world
Features and Benefits
The Meridian ITG Line 2.0 solution provides the
following benefits:
• Enables communication between a circuit –
switched telephony network and IP clients
• Can take advantage of IP telephony on an existing
Meridian 1 system
• Increased choice and flexibility in providing
desktop voice capability for campus and
remote users
• Leverages customer’s existing data network
infrastructure (data/voice convergence)
• Enables smooth roll-out of IP telephony services
building on the existing voice network
• Load balancing so IP sets can use a pool of DSP
Gateway resources
• Provide n x redundancy – in the unlikely event of
ITG line card failure, IP sets will register with
another ITG line card
• Most cost effective evolution to IP telephony
• Simplified network management and
support costs
• Simplified moves, adds and changes through
support of DHCP
Internet Telephony Gateway (ITG) Line Card 97
Internet Telephony Gateway
(ITG) Line Card
Overview
ITG Line card is supported on Option 11C, 11C Mini, 61C, 81C on x11Release 25 or above which enables
IP terminals to be deployed that deliver the feature rich suite of Meridian Digital Services over a single
Ethernet connection.
The ITG card has 24 DSP ports that provide gateway functionality to facilitate the bridging (conversion)
of voice streams between the packet switched (IP) data network and the circuit switched PBX network.
In addition, the ITG Line card acts as a Terminal Proxy Server or IP telephony softswitch for the IP sets.
In this capacity the ITG Line card is responsible for registering the IP sets and keeping track of the maximum
number of sets that can be registered per card.
i2004 IP Telephone
i2050 Software phone
ITG Line Card