ProntoNetLC User Manual
129
3. Communications in Dual mode, Joint Stereo or Stereo at 64
Kbps: When we configure Encoder 1 to Dual mode, Joint Stereo or
Stereo at 64 Kbps, Encoder 2 is disabled since there are no free audio
inputs or outputs to assign to it.
4. Communications at 128 Kbps – Inverse Multiplex:
Certain algorithms permit the compression of the signal at bit-rates other
than 64Kbps, for example at 128Kbps. With the ProntoNetLC it is possible
to send or receive audio compressed at 128 Kbps using both the B
channels of the basic rate ISDN connection. This is done by using ‘inverse
multiplex’ techniques that split the transmission of the full 128 Kbps over
two channels of 64 Kbps and then sum the parts together again at the
other end.
Inverse Multiplex is often known as ‘bonding’
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