AudioCodes Mediant 1000B - Page 1098

User's Manual 1098 Document #: LTRT-27055
Mediant 1000B Gateway & E-SBC
Parameter Description
Voice Volume
configure voip > media voice >
voice-volume
[VoiceVolume]
Global parameter defining the voice gain control (in decibels). This
defines the level of the transmitted (IP-to-Tel) signal.
You can also configure the functionality per specific calls, using IP
Profiles (IpProfile_VoiceVolume) or Tel Profiles
(TelProfile_VoiceVolume). For a detailed description of the
parameter and for configuring the functionality, see ''
Configuring IP
Profiles'' on page 423 or Configuring Tel Profiles on page 459.
Note: If the functionality is configured for a specific profile, the
settings of the global parameter is ignored for calls associated with
the profile.
configure voip > media voice
codecs > G726-voice-payload-
format
[VoicePayloadFormat]
Determines the bit ordering of the G.726 voice payload format.
 [0] = (Default) Little Endian
 [1] = Big Endian
Note: To ensure high voice quality when using G.726, both
communicating ends should use the same endianness format.
Therefore, when the device communicates with a third-party entity
that uses the G.726 voice coder and voice quality is poor, change
the settings of the parameter (between Big Endian and Little
Endian).
MF Transport Type
configure voip > media voice >
MF-transport-type
[MFTransportType]
Currently, not supported.
Echo Canceler
configure voip > media voice >
echo-canceller-enable
[EnableEchoCanceller]
Global parameter enabling echo cancellation (i.e., echo from voice
calls is removed).
You can also configure this functionality per specific calls, using IP
Profiles (IpProfile_EnableEchoCanceller) or Tel Profiles
(TelProfile_EnableEC). For a detailed description of the parameter
and for configuring the functionality, see ''Configuring IP Profiles''
on page 423 or Configuring Tel Profiles on page 459.
Note: If the functionality is configured for a specific profile, the
settings of this global parameter is ignored for calls associated
with the profile.
Max Echo Canceller Length
configure voip > media voice >
max-echo-canceller-length
[MaxEchoCancellerLength]
Defines the maximum Echo Canceler Length (in msec), which is
the maximum echo path delay (tail length) for which the echo
canceller is designed to operate:
 [0] Default = (Default) Based on various internal device settings
to attain maximum channel capacity
 [11] 64 msec
 [22] 128 msec
Note:
 For the parameter to take effect, a device reset is required.
 Using 128 msec may reduce channel capacity. For example:
with DSP Template 0 and number of spans 4, the capacity is
reduced from 120 to 100. The reduction depends on the
combination of “DSP Template” and “Number of Spans”. For
accurate figures, see Channel Capacity on page 1273.

When housed with an analog/BRI module, the device can use a
max. echo canceller length of 64 msec.
 When housed with PRI TRUNKS module, the device can use a