- ClearOne Communications Installation & Operation Manual Telephone Interface AP10

Appendices ~ Appendix C: Serial Commands

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LVL

This command reports back the transmit or receive level for a unit.

Command form:

DEVICE

LVL

<CH>

Explanation:

<CH> is which parameter to be measured.

CH=RXIN Parameter for level from the telephone line

CH=RXOUT Parameter for level from the AP10

CH=TXIN Parameter for level into the AP10

CH=TXOUT Parameter for level to the telephone line

Return values:

LVL will return the output level of the line channel in the same

format as the command.

Example:

If the current level for RXIN channel is -20dBu, the following is

returned out the serial port: DEVICE LVL RXIN -20

MUTE

This command controls or reports the mute status of a channel.

Command form:

DEVICE

MUTE

Explanation:

<CH> is the channel(s) to be muted/unmuted.

CH=T Parameter to apply to the transmit channel

CH=R Parameter to apply to the receive channel

CH=* Parameter to apply to both channels

<X> is the action (i.e. mute, unmute, report the mute state).

X=0 Set mute to off

X=1 Set mute to on (mute the selected channel)

X=2 Parameter to toggle the state from one state to the other

(regardless of current state)

X=NULL Report the current state of mute for the selected channel

Return values:

MUTE returns the mute status in the same format as the

command.

Example:

If current state of mute for channel T is muted, the following is returned out the

serial port: DEVICE MUTE T 1

If current state of mute for channel T is unmuted, the following is returned out the

serial port: DEVICE MUTE T 0