Adding A Reorder Tone To The Cpt File - 3Com VCX v7111 User Manual

Adding a Reorder Tone to the CPT File

The following procedure describes how to add a Reorder tone that a PBX generates to
indicate a disconnected call, to the CPT file.
To add a Reorder tone to the CPT file, take these 11 steps:
Make a call (using G.711) between the MP FXO, which is connected to the PBX, and a
1
remote entity in the IP network.
Capture the call using a "network sniffer" such as Wireshark.
2
Disconnect the call from the PBX side, and then wait approximately 30 seconds before
3
stopping the Wireshark recording.
In the network trace, locate the RTP stream sent from the FXO.
4
Save the RTP payload on your PC as a *.pcm file by clicking Save Payload (Statistics)
5
menu > RTP > Stream Analysis. (Note: ensure that you select the 'forward' option.)
Open the *.pcm file in a voice recording utility such as CoolEdit.
6
Locate the tone that the PBX played to indicate the disconnected call (if such a tone
7
exists).
Locate the attributes of the tone -- its frequency and interval (on / off time).
8
In the Call Progress Tones file, add a new Reorder Tone with the attributes you found in
9
the previous step. Ensure that you update the numbers of the successive tones and the
total number of tones in the beginning of the file.
10 Create a Call Progress Tones.dat file using the DConvert Utility (see
Downloadable Conversion
11 Load the new file to the gateway, and then reset the gateway.
440
Utility).
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VCX V7111 VoIP Gateway User Guide