Zephyr Transmission Modes
Found here is a handy list of Telos Zephyr Transmission modes. Modes can be individually selected for the Transmit and Receive paths.
Stereo and Dual-Mono Modes using two ISDN "B" channels:
Layer III Joint-Stereo at 20kHz or 15kHz for maximum fidelity.*
Layer III Independent Stereo at 20kHz or 15kHz for lower delay and surround-sound transmission.*
Layer III Dual-Mono at 20kHz or 15kHz when each channel has unique audio.*
Layer II Joint Stereo at 20kHz for compatibility.*
G.722 Dual-Channel at 7kHz for compatibility and/or lowest delay.
Mono Modes using one ISDN "B" channel:
Layer III Dual/Mono at 20kHz or 15kHz for maximum fidelity.
Layer II Mono at 7.8kHz or 9.8kHz for compatibility (48 kHz sample rate).
Layer II Mono at 8.6kHz for compatibility (24 kHz sample rate).
G.722 at 7kHz for compatibility and/or lowest delay.
Mono Modes using two ISDN "B" Channels:
Split-Channel Modes using two ISDN "B" channels:
ISDN Telephone Mode:
* These modes require a stereo capable Zephyr (such as Models 920X or 9302)