Ackmod -- Enable Or Disable Acknowledgment Mode; Aec -- Enable Or Disable Acoustic Echo Cancellation - Polycom Vortex EF2211 Programming Manual

This command sets or queries the status of the auto answer feature.
This command is a boolean command. See
This command is saved to non-volatile memory only as part of a preset. The state of this command
will be restored after power-up only if a preset is saved and that preset is set to be the power-on
preset.
Example Description
Enable auto answer mode. S01AA1
S01AA1
Disable auto answer mode. S01AA0
S01AA0
Toggle auto answer mode.
S01AA2
Query auto answer mode.
S01AA?

8.2. ACKMOD -- Enable or Disable Acknowledgment Mode

This command controls whether or not status messages are sent. See
on status messages. This parameter is enabled by default, and it is rarely turned off by the host
controller.
This command is a boolean command. See
This command is saved to global non-volatile memory and is not part of a preset. Its value is saved
each time it is changed. It will retain its value after power-down. Since this command writes to non-
volatile memory, there will be a delay before an acknowledgment is returned.
Example Description
S01ACKMOD1 Enable acknowledgement mode. S01ACKMOD1
S01ACKMOD0 Disable acknowledgement mode. S01ACKMOD0
S01ACKMOD2 Toggle acknowledgement mode.
S01ACKMOD? Query acknowledgement mode.

8.3. AEC -- Enable or Disable Acoustic Echo Cancellation

This command sets or queries the status of the Acoustic Echo Cancellation (AEC) algorithm on input
channel 1.
This command is a channel boolean command. See
on this type of command.
Section 6.1 for more information on this type of command.
Status Message
S01AAx , where x is 0 or 1 depending on the current state of
auto answer mode.
S01AAx , where x is 0 or 1 depending on the current state of
auto answer mode.
Section 6.1 for more information on this type of command.
Status Message
S01ACKMODx , where x is 0 or 1 depending on the
current state of acknowledgement mode.
S01ACKMODx , where x is 0 or 1 depending on the
current state of acknowledgement mode.
Section 6.3
Section 5 for more information
and Section 6.1 for more information