Polycom Vortex EF2241 - LEC - Enable or Disable LEC; LECMODE - Set Amount of Double Talk Suppression used in the LEC.

Example Description Status Message
B01LAGCRATEA3
Set AGC ramp rate on input
channel A to 3 dB/sec.
B01LAGCRATEA3
B01LAGCRATEB?
Query the AGC ramp rate on
input channel B.
B01LAGCRATEBx , where x is a number between 1
and 5, depending on the current setting of the AGC
ramp rate on input channel B.
B01LAGCRATE*5
Set AGC ramp rate on input
channels A-D to 5 dB/sec.
B01LAGCRATE*ëëëë
B01LAGCRATE*ààêê
Set AGC ramp rate on input
channels A-B to 1 dB/sec and
AGC ramp rate on input
channels C-D to 4 dB/sec.
B01LAGCRATE*ààêê
B01LAGCRATE*?
Query AGC ramp rate on input
channels A-D.
B01LAGCRATE*abcd , where a-d are each
between à and ë, depending on the current setting
of the AGC ramp rate for each of the line input
channels.
8.76. LEC -- Enable or Disable LEC
This command sets or queries the status of the line echo canceller (LEC).
This command is a boolean command. See
Section 6.1 for more information on this type of command.
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 Status Message
B01LEC1
Enable LEC.
B01LEC1
B01LEC0
Disable LEC.
B01LEC0
B01LEC2
Toggle LEC state.
B01LECx , where x is 0 or 1 depending on the current state of the LEC.
B01LEC?
Query LEC state.
B01LECx , where x is 0 or 1 depending on the current state of the LEC.
8.77. LECMODE -- Set Amount of Double Talk Suppression used
in the LEC.
This command sets the amount of double talk suppression used in the LEC on the telephone input (T). The
values correspond to the following settings.
● 1 = No Suppression
● 2 = Light Suppression
● 3 = Heavy Suppression
● 4 = Half Duplex
This command is an integer command. See
Section 6.2 for more information on this type of command. The