Strata CIX 200, Programming Manual

Page: 325 / 508

IP Telephone Programming
IP Telephone Installation and Network Connection Setup
Strata CIX Programming Vol.1 12/09
8-11
IP T
e
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phone
Pr
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152 Voice Packet Configuration Table Assignment
This program assigns timing parameters to Prime DNs.
1. Select IP-Telephony > Voice Packet Configuration. The Voice Packet Configuration Table Assignment
screen displays.
2. Enter Program 152 data.
3. Click Submit .
Note When setting Voice Packet Configuration Tables on an Strata Net IP network, the packet table
settings for each node on an end-to-end connection must be the same.
Note Whenever Voice Packet Configuration Table changes are made for IP telephones on Strata Net IP
nodes, Toshiba recommends pressing the reset button on the LIPU/BIPU to assure the changes
take effect.
F
IELD
D
ESCRIPTION
Voice Packet Table
Number Enter the Voice Packet Configuration Table Number (1-256).
Important! The default values in Voice Packet Table 1 are the recommended
values for G.711 codecs. The default values in Voice Packet Table
2 are the recommended values for G.729A codecs. If the codec
selected for an IP telephone in Program 250-08 is switched from
the default G.711 to G.729A, the table used for the IP telephone is
automatically switched from Table 1 to Table 2 in Program 250-07.
However switching back to G.711 requires that you manually switch
back to the Table 1 default parameter settings.
Possible values:1~128 (CIX100, CIX670 and CIX1200 Basic); 1~256 (CIX670
and CIX1200 Exp.)
01 Voice Packet Trans. Int. Voice Packet Transmission Interval – This depends on the encoding method
G711 or G729A. The default setting are G711: 20msec., G729A: 40msec. Note
that 10msec. is only used to test - do not use 10ms. Normally, the default settings
provide the best quality.
If LAN bandwidth is not enough for these parameters and the problem is resolved
to extend the interval according to the LAN requirement, you can change to
G711:40msec. and G729a: 80msec.
Note 30msec. need not be used.
Possible values:10 msec (available for testing only up to release 200MF008), 20
msec (default), 30 msec, 40 msec or 80 msec
02 Jitter Buffer Type The default values for the selected codec is recommended. If the voice quality is
not as expected you can change the jitter buffer type of DSP on LIPU/BIPU.
Possible values:Fixed, Sequential, or Adaptive
The default values are: G.711 = Adaptive, G.729A = Sequential (recommended).
03 Jitter Buffer Length The default values for the selected codec is recommended. If the voice quality is
not as expected you can change the jitter buffer length.
Possible values: 0~250
The default values are: G.711= 100msec., G.729A=40msec.