What is an ISDN Codec?
ISDN is a digital dial-up telephone network, which can be configured for data as well as voice telephone service. A codec is a coder-decoder. A signal goes into the “coder” part and is processed according to a given function. In this case, analog audio is converted to digital and then processed (digitally compressed) to reduce the size of the digital signal. On the “decoder” side, the opposite happens: the signal goes through digital decompression and then is converted back to analog audio. Functionally, ISDN Codecs are used in pairs. At one location, an ISDN Codec is used as a coder, sending the compressed digital signal to the other location via the ISDN line where the second ISDN Codec decodes the signal. Comrex ISDN Codecs are fully bidirectional, allowing both units in the pair to transmit and receive high-quality audio. Also, Comrex ISDN Codecs utilize industry standards, so they can communicate with many other manufacturers’ ISDN Codecs around the world.
ISDN is a digital dial-up telephone network, which can be configured for data as well as voice telephone service. A codec is a coder-decoder. A signal goes into the coder part and is processed according to a given function. In this case, analog audio is converted to digital and then processed (digitally compressed) to reduce the size of the digital signal. On the decoder side, the opposite happens: the signal goes through digital decompression and then is converted back to analog audio. Functionally, ISDN Codecs are used in pairs. At one location, an ISDN Codec is used as a coder, sending the compressed digital signal to the other location via the ISDN line where the second ISDN Codec decodes the signal. Comrex ISDN Codecs are fully bidirectional, allowing both units in the pair to transmit and receive high-quality audio. Also, Comrex ISDN Codecs utilize industry standards, so they can communicate with many other manufacturers ISDN Codecs around the world.
