Automatic Gain Control (Agc); Table 11-3: Calling Name (Display); Table 11-4: Redirect Number - AudioCodes Mediant 2000 User Manual

NT/TE Interface DMS-100
NT-to-TE
TE-to-NT
NT/TE Interface
NT-to-TE
TE-to-NT
* When using ETSI DivertingLegInformation2 in a Facility IE (not Redirecting Number IE).
11.6

Automatic Gain Control (AGC)

Automatic Gain Control (AGC) adjusts the energy of the output signal to a required level
(i.e., volume). This feature compensates for near-far gain differences. AGC estimates the
energy of the incoming signal (from the IP or PSTN, determined by the parameter
AGCRedirection), calculates the essential gain, and then performs amplification. Feedback
ensures that the output signal is not clipped. You can define the required Gain Slope in
decibels per second (using the parameter AGCGainSlop) and the required signal energy
threshold (using the parameter AGCTargetEnergy).
When the AGC first detects an incoming signal, it begins operating in Fast Mode, which
allows the AGC to adapt quickly when a conversation starts. This means that the Gain
Slope is 8 dB/sec for the first 1.5 seconds. After this period, the Gain Slope is changed to
the user-defined value. You can disable or enable the AGC's Fast Mode feature, using the
ini file parameter AGCDisableFastAdaptation. After Fast Mode is used, the signal should be
off for two minutes in order to have the feature turned on again.
To configure AGC, refer to ''Configuring the IPmedia Settings'' on page 70.
SIP User's Manual

Table 11-3: Calling Name (Display)

NI-2
Yes Yes
Yes Yes

Table 11-4: Redirect Number

DMS-100 NI-2
Yes Yes
Yes Yes
4/5ESS
Yes
Yes
4/5ESS
Yes
Yes
480
Mediant 2000
Euro ISDN QSIG
Yes Yes
No Yes
Euro ISDN QSIG
Yes Yes
Yes * Yes
Document #: LTRT-68809