Description Page 63 of 910
IP Line Description, Installation and Maintenance
• Up to 1024 VTNs can be configured on a single virtual superloop for
CS 1000S systems. Table 11 describes the virtual superloop and virtual
card mapping on a CS 1000S system. Each superloop has two ranges of
cards.
Each ITG-P 24-port card provides 24 physical TNs and each Media Card
32-port card provides 32 physical TNs. The physical TNs are the gateway
channels (DSP ports).
Configure the physical TNs (IPTN) in LD 14. They appear as TIE trunks
without a Route Data Block (RDB).

Virtual TNs

Virtual TNs enable service data to be configured for an IP Phone, such as key
layout and class of service, without requiring a physical IP Phone to be
directly connected to the Call Server.
The concentration of IP Phones is made possible by dynamically allocating a
port (also referred to as a physical TN) of the Voice Gateway Media Card for
a circuit-switched- to-IP Phone call. All system speech path management is
done with physical TNs instead of virtual TNs.
The channels (ports) on the Voice Gateway Media Cards are pooled
resources.
The IP Phones (virtual TNs) are defined on virtual superloops.
Table 11
Virtual superloop/virtual card mapping for CS 1000S
SUPL Card
96 61-64 81-84
100 65-68 85-88
104 69-72 89-92
108 73-76 93-96
112 77-80 97-99