audio.nms.RemoteRTPAddressPortStart

Sets the starting IP port number for channels on the telephony board to receive RTP packets. Each Telephony Session service instance handles 23 channels. Voice Platform defines the starting IP port number for the first board channel on each Telephony Session service instance. The NMS audio provider uses the default value to assign a unique IP port number to the remaining channels on the board. It increments the preceding value by 4 to get the next value.

The default starting IP port number for each Telephony Session service instance is:

  • Instance #1: 16384
  • Instance #2: 16480
  • Instance #3: 16576
  • Instance #4: 16672

You only need be concerned with setting this service property if you have a custom role file or application that uses already assigned IP port numbers thus causing port conflicts.