natprdemo demonstrates:
Initializing NaturalAccess and creating multiple contexts.
Creating an MSPP channel with RTP and DS0 endpoints.
Using ADI API and Voice message API functions to play and record RTP media streams without transcoding, and collecting RFC2833 digits on the MSPP channel.
Passing RFC 2833 digits to the ADI digit collection function.
natprdemo -R remoteIPaddress -r remoteportnum options
where
remoteIPaddress is the IPv4 address of the remote device,
remoteportnum is the UDP port of the remote device,
options include the following:
|
Option |
Description |
|
-b boardnum |
Board number. Default is 0. |
|
-e recordencoder |
Type of encoding for record. Default is 46 (EDTX mu-law). Valid values include: 46 = EDTX mu-law 47 = EDTX A-law 48 = EDTX G.726 ADPCM 49 = EDTX G.729a 50 = EDTX G.723 153 = EDTX AMR |
|
-p playencoder |
Type of encoding for play. Default is 10. Valid values include: 10 = mu-law11 = A-law 20 = 32 bit G.726 ADPCM 46 = EDTX mu-law 47 = EDTX A-law 48 = EDTX G.726 ADPCM 49 = EDTX G.729a 50 = EDTX G.723 153 = EDTX AMR |
|
-f filename |
Name of the file to which you want to direct recorded data. Default is temp.vox. |
|
-L localIPaddress |
IPv4 address of the local computer. Default is 127.0.0.1. |
|
-l localportnum |
UDP port to use on the local computer. Default is the same port number as the remote port. |
|
-q |
Quiet mode. This option suppresses most console messages. |
|
-s timeslot |
IVR timeslot number. Default is 0. |
|
-d value |
Decode Record stream flag. Valid values include:
You must enable the decoder (the default setting)if you are implementing silence detection. |
natprdemo uses the MSPP API and NaturalAccess to implement an interactive voice response (IVR) application for IP telephone calls. It establishes a two-way voice path from the local computer to a remote IP address and port. The demonstration program does not set up the call or obtain the remote address. In an actual application, call setup is handled by a separate protocol such as the session initiation protocol (SIP).
This program demonstrates synchronous programming on a single port. After each command, natprdemo retrieves events continuously until the expected event returns.
Run natprdemo by using a telephone connected to a full duplex G.711 RTP stream at a known IP address and port (for example, a gateway that uses a CG board).
To run natprdemo:
|
Step |
Action |
|
1 |
Navigate to the \nms\fusion\samples\natprdemo directory in Windows or the /opt/nms/fusion/samples/natprdemo directory in Linux. |
|
2 |
Enter the following command: natprdemo -R remoteIPaddress -r remoteportnum |
|
3 |
From the telephone, listen for the greeting. After playing the greeting, natprdemo displays a menu of options. |
|
4 |
From the telephone, press 1. |
|
5 |
Record a brief voice message. |
|
6 |
Press 2. |
|
7 |
Verify that the recorded message plays back. |
|
8 |
Close natprdemo by pressing 3. |