(Page 1 of 1 in this chapter)


Appendix B

Switching Examples


Introduction

This appendix shows the switching commands for a typical switching application. The boards in the system are:

Board

Functionality

AG-T1

24 T1 channels with 24 ports of DSP resources

S Connect-24

24 operator workstation interfaces

AG-24

24 ports of DSP resources used for DTMF/tone generation and detection for the S Connect-24

Switching Example

The following default switch connections are made:

Board

Default Connections

AG-T1

Switch connections to connect the network interface voice and signaling streams to the on-board DSP resources.

S Connect-24

Switch connections to connect the operator workstation voice and signaling streams to the AG-24 DSP resources.

AG-24

MVIP-90: Voice data nailed up to stream 0; signaling data nailed up to stream 1.

MVIP-95: Voice data nailed up to streams 0 and 1; signaling data nailed up to streams 2 and 3.

.

The following steps show how a typical incoming call is switched:

  1. A call is received on the first T1 channel.

  2. A voice prompt is played using the on-board DSP resources.

  3. The caller is instructed to enter a digit for the service he requires.

    The on-board DSP resources are used to detect the entered digit.

  4. The caller presses "5" to speak to an operator.

  5. The caller is connected to an available operator workstation (on timeslot 4) on the S Connect board using MVIP streams 12 and 13:

    1. The voice on the AG-T1 channel is disconnected from the on-board DSP resources.

      
      
    2. The voice on the fifth operator workstation is disconnected from the AG-24 DSP resources.

      
      
    3. The voice on the T1 channel and the voice on the operator workstation are connected using the MVIP bus.

On the AG-T1:

MVIP-90 Commands

MVIP-95 Commands

UnMakeConnection(16:0 to 17:0)

UnMakeConnection(17:0 to 16:0)

MakeConnection(16:0 to 6:5)

MakeConnection(6:5 to 16:0)

UnMakeConnection(LOCAL:0:0 to LOCAL:5:0)

UnMakeConnection(LOCAL:4:0 to LOCAL:1:0)

MakeConnection(LOCAL:0:0 to MVIP:13:5)

MakeConnection(MVIP:12:5 to LOCAL:1:0)


 
On the S Connect:

MVIP-90 Commands

MVIP-95 Commands

UnMakeConnection(16:4 to 0:4)

UnMakeConnection(0:4 to 16:4)

MakeConnection(16:4 to 14:5)

MakeConnection(14:5 to 16:4)

UnMakeConnection(LOCAL:0:4 to MVIP:1:4)

UnMakeConnection(MVIP:0:4 to LOCAL:1:4)

MakeConnection(LOCAL:0:4 to MVIP:12:5)

MakeConnection(MVIP:13:5 to LOCAL:1:4)

  1. When the call is complete, the AG-T1 and the S-Connect channels are disconnected from the MVIP bus, and re-connected to DSP resources.

On the AG-T1:

MVIP-90 Commands

MVIP-95 Commands

UnMakeConnection(16:0 to 6:5)

UnMakeConnection(6:5 to 16:0)

MakeConnection(16:0 to 17:0)

MakeConnection(17:0 to 16:0)

UnMakeConnection(LOCAL:0:0 to MVIP:13:5)

UnMakeConnection(MVIP:12:5 to LOCAL:1:0)

MakeConnection(LOCAL:0:0 to LOCAL:5:0)

MakeConnection(LOCAL:4:0 to LOCAL:1:0)


 
On the S Connect:

MVIP-90 Commands

MVIP-95 Commands

UnMakeConnection(16:4 to 14:5)

UnMakeConnection(14:5 to 16:4)

MakeConnection(16:4 to 0:4)

MakeConnection(0:4 to 16:4)

UnMakeConnection(LOCAL:0:4 to MVIP:12:5)

UnMakeConnection(MVIP:13:5 to LOCAL:1:4)

MakeConnection(LOCAL:0:0 to MVIP:1:4)

MakeConnection(MVIP:0:4 to LOCAL:1:4)



(Page 1 of 1 in this chapter)


tech_support@nmss.com
Copyright © 1999, Natural MicroSystems, Inc. All rights reserved.