The Avaya TN8412AP S8400 server IP interface is used in an S8400 system.
Provides transport of control messages between the S8400 Media Server and the media server's port network
Resides in the tone clock slot on a media gateway
The SIPI provides the following functions
* PN clock generation and synchronization for Stratum 4 type II only
* PN tone generation
* PN tone detection, global call classification, and international protocols
* Environmental maintenance