TELES VoIP Box BRI Series, Справочное руководство

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5 Additional VoIP parameters
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 102
VoipMaximumBandwidth=<number>
Defines an upper limit for available bandwidth for the VoIP profiles to be configured
if traffic shaping is active for the corresponding VoIP profile.
Enter the upper limit for available bandwidth for the VoIP profiles to be configured
(see the parameter
VoipBandwidthRestriction
) if traffic shaping is active for the cor-
responding VoIP profile. Individual codecs are assigned the following values in kBit/s:
g711a, f711u, trp: 8
g72632, t38: 4
g72624 3
g72616, gsm 2
Other 1
You must define the list of codecs to be used in the VoIP profiles, whereby the codec
with the highest priority must be defined first. Calls will be set up using the codec with
the highest priority as long as the sum of the values for individual calls remains lower
than defined here. If the sum is greater, the next call will be set up with, and existing
calls will be switched to, a higher compression rate. Bear in mind that the VoIP peer
must support this feature.
VoipBrokenDetectionTimeout=<ms>
When this parameter is set, the system processes an interruption in the transmission
of RTP/RTCP data in the VoIP connection following the set number of milliseconds (de-
fault 0). This parameter is necessary to set up an IntraSTAR call immediately when the
IP connection is disrupted. Bear in mind that VoipSilenceSuppression=No must ap-
pear in the VoIP profile.
VoipCallGroup=<name>
All outgoing VoIP calls for VoIP profiles with the same VoipCallGroup name are distrib-
uted cyclically to these profiles.
VoipConnBrokenTimeout=<sec>
An entry is generated in the protocol.log file and the connection is terminated after a
connection broken exists for the number of seconds entered (default 300). If
0
is en-
tered, no entry will be generated and the connection will not be terminated.
VoipDJBufMaxDelay=<count>
Enter a value in milliseconds (0-320) to set a maximum jitter buffer limit (default 150).
For fax transmission (t.38) it is fixed to 200ms.
NOTE: VoipDJBufMaxDelay must be greater than VoipDJBufMinDelay.
VoipDJBufMinDelay=<count>
Enter a value in milliseconds (0-320) to set a minimum jitter buffer limit (default 35).
For fax transmission (t.38) it is fixed to 200ms.
NOTE: VoipDJBufMaxDelay must be greater than VoipDJBufMinDelay.
VoipDJBufOptFactor=<count>
Enter a value between 0 and 13 to set the balance between low frame erasure rates
and low delay (default 7).
VoipECE=<mode>
Enter yes (default) to set ITU G. 168 echo cancellation. Enter no to disable echo can-
cellation.
Table 5.7 Customized parameters: VoIP quality (page 2 of 5)
VoIP Quality Parameters