Specifications

Explorers Nur für den internen Gebrauch
A31003-H3580-M103-2-76A9, 01-2009
7-194 HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
hg-07.fm
Payload
● Maximum Network Jitter (hex msec): If the maximum network jitter for G.711 transmission
is known, enter it in this field. If the jitter is not known, the value FFFF should be entered
here. Any appropriate hexadecimal specification consisting of the digits 0-9 and A-F is per-
mitted. If at all possible these parameters should not be modifed.
● Fax/Modem Tone Detection Timeout (s): Time to detect fax tones during a connection. This
ensures a switchover to the T.38 fax protocol. Once the defined time has expired, fax tones
are no longer detected. The 0 value means that detection is activated for the entire duration
of the connection.
Click Apply followed by OK in the confirmation mask (save the new configuration status perma-
nently with the Save icon in the control area). The DSP Settings mask reappears.
7.7.5.5 Editing DSP jitter settings
You can edit the current jitter settings.
For details/background information, see Section 9.5, "Static and Adaptive Jitter Buffer".
WBM path:
WBM (write access activated with the Padlock icon in the control area?) > Explorers > Payload
> (right-click) HW Modules > Edit DSP Jitter Settings
The DSP Jitter Buffer Settings mask is displayed. You can edit the following fields:
● Jitter Buffer Type: Select whether the jitter buffer should be static or adaptive. In adaptive
mode, the jitter buffer aligns with the average delay when receiving data. It attempts to keep
the delay as low as possible while keeping data packet loss to a minimum. In static mode,
the average delay always remains the same.
● Average Delay for Voice (msec): Enter the average number of milliseconds an IP packet
should be held in the jitter buffer in the case of IP-based voice transmission. In the case of
the adaptive jitter buffer type, the value entered here is only a start value. The recommend-
ed value for most environments is 40.
● Maximum Delay for Voice (msec): In the case of the static jitter buffer type, enter the max-
imum number of milliseconds permitted for a delay before the jitter buffer intervenes in the
data stream when receiving IP packets as part of a voice transmission. For the adaptive
jitter buffer type, enter the maximum number of milliseconds for the average delay for voice.
Outgoing packets are lost if the actual delay measured is higher. The recommended value
for the static jitter buffer is 80 for most environments; the recommended value is 120 for the
adaptive jitter buffer. This value always be higher than the value in the Average Delay for
Voice (msec) field.
● Min. Delay for Voice (msec): If adaptive was selected as the jitter buffer type, enter the min-
imum number of milliseconds permitted for the average delay for voice minimal. The aver-
age delay is always greater than or equal to this value.