Specifications

Circuit packs, channel service units, and power supplies
258 Hardware Description and Reference for Avaya Communication Manager
The switch requires the TN2308 to support Brazil Block Collect Call. The TN2308 transmission
characteristics comply with Brazilian telecommunication standards for PBXs.
TN2312BP IP server interface
The TN2312BP IP server interface (IPSI) provides transport of control messages. The
messages are sent between the S8500 or S8700-series Media Server to the media server’s
port networks (PNs) using the customer’s LAN and WAN. Through these control messages, the
media server controls the PNs.
See Figure 61:
IPSI faceplate for an example of the IPSI faceplate
Figure 61: IPSI faceplate
Detailed description
Dedicated and nondedicated network for control messages
You can configure the path for control messages to be over a LAN dedicated to communication
between the server and IPSI. In this case, the network for carrying calls, the bearer path, is
separate from the dedicated LAN for control messages. The bearer path uses the customer’s
nondedicated LAN, a center stage switch (CSS) configuration, or an asynchronous
transmission mode (ATM) network.
You can also configure the path for control messages to use the customer’s nondedicated LAN.
In this case, the bearer path and control path use the same network.
IPSI capabilities
The IPSI always resides in the tone clock slot on a media gateway and uses a 10/100 BaseT
interface to connect to:
● The server
● A laptop computer connected to the server through a services port
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