Polycom Vortex EF2211 User Manual

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
S01AGCRATE13
Set AGC ramp rate on input channel
1 to 3 dB/sec.
S01AGCRATE13
S01AGCRATET?
Query the AGC ramp rate on input
channel T .
S01AGCRATETx where x is a number
between 1 and 5, depending on the current
setting of the AGC ramp rate on input
channel T .
8.9. AHCP -- Enable or Disable Call Progress Based Auto
Hangup
This command sets or queries the status of the call progress based auto hangup feature. There are
two methods of auto hangup supported: call progress and loop drop. The call progress method listens
for off-hook or busy tones and hangs up the phone if they are detected. The loop drop method looks
for a drop in loop current on the phone line and hangs up the phone if a loop current drop is detected.
The AHCP command controls the call progress auto hangup feature. The
AHLD command controls the
loop drop auto hangup feature. These two features are controlled and implemented independently.
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
S01AHCP1
Enable call progress based auto hangup mode.
S01AHCP1
S01AHCP0
Disable call progress based auto hangup mode.
S01AHCP0
S01AHCP2
Toggle call progress based auto hangup mode.
S01AHCPx , where x is 0 or 1
depending on the current state of the
call progress based auto hangup mode.
S01AHCP?
Query auto hangup mode.
S01AHCPx , where x is 0 or 1
depending on the current state of the
call progress based auto hangup mode.
8.10. AHLD -- Enable or Disable Loop Drop Based Auto
Hangup
This command sets or queries the status of the loop drop based auto hangup feature. There are two
methods of auto hangup supported: call progress and loop drop. The call progress method listens for

Polycom Vortex EF2211 Specifications

Power

input voltage	110-240 VAC
frequency	47-63 Hz
power consumption	25 W
phantom power	24 V

Connectors

RS-232	DB9F
EF Bus In/Out	RJ45
Telephone Line/Set	RJ11
Control/Status	DB25F
Audio	3.5mm quick connect terminal blocks

Audio Specifications

microphone input	-30 dBu to +0 dBu
line inputs	-20 dBu to +0 dBu
line outputs	-20 dBu to +0 dBu
loudspeaker output	10 W, 4-16 Ohms
input impedance	10 k Ohms
output impedance	50 Ohms
headroom	20 dB
signal to noise ratio	85 dB
frequency response	20 Hz - 22 kHz

Echo and Noise Cancellation

total cancellation	65 dB
convergence rate	40 dB/second
noise cancellation	0-15 dB
echo cancellation	40 dB, total >65 dB
convergence	30 dB/second
cancellation span	32 ms
acoustic echo cancellation span	270 ms

Operating Environment

operating temperature	0 °C - 40 °C
status outputs	5 V, 20 mA each

Weight and Dimensions

width	483 mm
length	244 mm
height	45 mm
weight	1.8 kg
shipping weight	2.5 kg