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This object is used to provision the jitter buffer mode
to be apply to a call connection.
The possible values are:
'fixed' : means use a constant jitter buffer size, which
is defined by the vismJitterInitialDelay
(specify in CISCO-VISM-MODULE-MIB MIB) variable.
The DSP will be instructed to use fixed
with no time-stamps mode.
'adaptive': means let the DSP pick the optimal value for
the call connection.
'fixedWithTimeStamp': means use a constant jitter
buffer size, which is defined by the
vismJitterInitialDelay variable. The DSP
will be instructed to use fixed with
time-stamps mode.
For 'g711u', 'g711a', 'clearChannel', and 'lossless'
the default value is fixed.
For 'g726r32000', 'g729a', 'g729ab', 'g726r16000',
'g726r24000','g726r40000', 'g723h','g723l',
'g723ah' and 'g723al' the default value is adaptive.
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This object defines the jitter buffer size in milliseconds.
If the vismCodecJitterDelayMode is set to be 'fixed',
the jitter buffer is fixed at this value for the duration
of the call, if it is set to 'adaptive', the value of
this object is the initial jitter buffer size, and the
DSP will adapt to an optimal size dynamically.
For G.711u, G.711a, Clear Channel, the default value is
100 ms.
For lossless the default value is 16ms.
For 'g726r32000', 'g729a', 'g729ab', 'g726r16000',
'g726r24000','g726r40000', 'g723h','g723l',
'g723ah' and 'g723al' the default value is 60 ms.
The jitter buffer size of this object differs for each set of
codecs supported on VISM card. A set of codecs supported
is identified by vismCodecTemplateNum object(defined in
CISCO-VISM-CODEC-MIB MIB).
For codecs in template number 1, 3, 4, and 5:
the jitter buffer size is as follow: 'zero', 'five', 'ten'
'fifteen', 'twenty', 'thirty', 'fourty', 'fifty', 'sixty',
'seventy', 'eighty', 'ninty', 'hundred'.
For codecs in template 2, the jitter buffer size
is as follow: 'zero', 'five', 'ten', 'fifteen', 'twenty',
'twentyfive', 'thirty', 'thirtyfive', 'fourty', 'fortyfive',
'fifty', 'fiftyfive', 'sixty', 'sixtyfive', 'seventy',
'seventyfive', 'eighty', 'eightyfive', 'ninty', 'ninetyfive',
'hundred'.
When the codec template changes, the value of this
object will be implicitly set to the default value.
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