Manual

98

When incoming or outgoing POTS calls are acve, the  menu changes slightly. You will see two
addional buons appear: ; and . These are special funcons applicable only to POTS calls,
so they are not visible during IP connecons.
These controls are similar in funcon to those provided on POTS codecs. NX will inially connect at the best data rate
supported by the telephone line, and will display that connect rate on the menu This value may be
viewed by pressing the + next to the acve connecon. You can force the system to drop to the next lowest connect rate
by clicking the  buon at any me. Audio transfer will be interrupted momentarily while the units negoate
the new connect rate. Alternately, you can force the system to iniate the enre training sequence again (the “chat”
sounds heard at the beginning of a call) by clicking the  buon. You will lose audio for a longer me (approx.
7 seconds) but the modems will completely re-equalize the connecon and audio will begin again once the retraining is
nished.
Once NX has dropped to a lower rate, either by a rate drop or retrain command from either end, there is no way to force
it to connect at a higher rate. If you want NX to try again for a higher connect rate, you will need to disconnect the call
and dial again.