# Changes to msppsamp

msppsamp is a demonstration program provided with NaturalAccess Fusion that demonstrates how to set up MSPP endpoints and channels for data transfer between PSTN (DS0) and IP (RTP) endpoints. For more information on msppsamp, refer to the Dialogic® NaturalAccess™ Fusion™ VoIP API Developer's Manual.

msppsamp supports the following functionality:

- Creating, configuring, and querying an NbUP endpoint.

- Clear channel.

- Streaming the NbUP data stream to another IP address using RTP switching channel for validation and capture purposes.

## Command Line Switches

The following table describes the command line switches that were added or modified:

Entry | Description | Valid values
-a | Create NbUP endpoint in place of normal RTP endpoint. | N/A
-s destinationIPaddress | IPv4 address of remote machine to which the NbUP stream is forwarded using RTP switching channel. | IPv4 address.
-g vocodertype | Type of encoder/decoder filter to use. | CLR and clr along with already supported values.

## RTP Endpoint Filter Commands

The following commands were added to the RTP endpoint filter commands:

Option | Sub-option | Description
B | RTP endpoint filter commands.
| 7 | Configure NbUP protocol parameters.
| 8 | Start NbUP initialization procedure.
| 9 | Stop NbUP initialization procedure.

## Jitter Filter Commands

The following commands were added to the Jitter filter commands:

Option | Sub-option | Description
C | Jitter filter commands
| 4 | Change RFD.