User guide

August 2001 179

Switching Calls through the MVIP-90 Bus

After the caller enters an extension, the application determines

which line that extension uses and makes the appropriate

connection. In this example, the requested extension uses the

fourth resource on the RTNI-ATSI.

The T1 board breaks the connection with the Vantage VRS and

makes a connection with stream 5 on the MVIP bus. The

RTNI-ATSI board also makes a full-duplex connection with

stream 5. The RTNI-ATSI board then rings the extension

selected by the caller.

Figure 37. The T1 Transfers the Call to the Appropriate

Extension

Trunk 0

RTNI-2TI

RTNI ATSI

Vantage VRS

(16, 3)

(16, 0)

DSi5

DSo5

DSi6

DSo6

Stream 16

(13, 0) (13, 0)(5, 0) (5, 0)