Telos Zephyr Xstream User Manual page 186

When full fidelity is needed in both directions:
Field Unit: AAC‐LD Mono 64 Transmit and AAC 64 Receive.
Studio Unit: AAC‐LD Mono 64 Transmit and AAC 64 Receive
Use 32 kHz sample rate for best fidelity or 48 kHz for reduced delay
Radio remotes where only POTS is available at the remote location
Best:
Field Unit: Zephyr Xport
Studio Unit: Zephyr Xstream
Dial using "Xport" mode
Radio remotes (Stereo) using a single B channel (1 call)
Good:
Field Unit: AAC J Stereo 64 Transmit and G.722 Receive.
Studio Unit: G.722 Transmit and AAC 64 Receive.
Use 32 kHz sample rate.
When best stereo is needed in both directions:
Field Unit: AAC J Stereo 64 Transmit and AAC 64 Receive.
Studio Unit: AAC J Stereo 64 Transmit and AAC 64 Receive
Use 32 kHz sample rate
NOTE: If a single return feed is required, any other single‐B channel mode (typically AAC‐LD, or
G.722, see above) can be used in the return direction for improved fidelity or reduced delay.
Radio remotes (Stereo) to two sites using a two B channels (2 calls) with
one return from each.
Good:
Field Unit: AAC J Stereo 64 Transmit and G.722 Receive.
Studio Units: G.722 Transmit and AAC 64 Receive.
Use 32 kHz sample rate.
NOTES:
USER'S MANUAL
Section 10: APPLICATIONS GUIDE
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