CHAPTER 3 SYSTEM DATA PROGRAMMING
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ND-71503(E) Rev.5.0
9pch3002.fm
Bandwidth of voice packets for each call (Both way)
NOTE:
The bandwidth for G.723.1 is defined by which the voice encoding uses 6.3 Kbps.
The system counts the bandwidth for each call based on the above table whenever the call is estab-
lished, and the system deletes the bandwidth when the call is released.
6.
When an outgoing/incoming call is attempted, and the voice encoding type and payload size between
the Locations is not determined yet, the bandwidth for the call is temporarily determined based on the
primary value in the CODEC list in the system. The system counts that temporary bandwidth.
7.
When the call is established and the voice encoding type and payload size actually used are informed
from the corresponding terminal, the system deletes the temporary bandwidth determined by #6
above and counts the bandwidth based on the voice encoding type and payload size actually used.
In case of CCIS calls over IP network with Peer-to-Peer connections, the system maintains the band-
width determined based on the primary value of the CODEC list in the system, as mentioned #6
above.
8.
There are following conditions when the Limit Threshold is exceeded.
a. When an outgoing call is attempted and an answering party can be specified, the call is restricted
when calling.
b. When an outgoing call is attempted but an answering party cannot be specified, the call is restrict-
ed after answered.
c. The bandwidth for a call on hold is not maintained.
d. When a held call is restricted from a different party from the party initiating hold and the Limit
Threshold is exceeded, the retrieving the call is restricted and the both parties will receive reorder
tone.
e. When a call is terminated to a Multiline group, the system will check the bandwidth for My Line
only. Therefore, when the call is answered by Sub line and the Limit Threshold is exceeded, the
call is restricted and the calling and called party will receive reorder tone.
9.
When the occupied bandwidth exceeds the Limit Threshold or Warning Threshold, fault information
can be recorded and/or an external alarm indication can be provided by system data assignment.
10. The default alarm type when exceeding each threshold is as follows.
– Limit Threshold is exceeded
: MJ alarm
– Warning Threshold is exceeded : MN alarm
Type of Voice Encoding
Payload Size (ms.)
10
20
30
40
G.711 (64 Kbps)
192 Kbps
160 Kbps
147.4 Kbps
144 Kbps
G.729a (8 Kbps)
80 Kbps
48 Kbps
37.4 Kbps
32 Kbps
G.723.1 (6.3/5.3 Kbps)
–
–
34.2 Kbps
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FEBRUARY/28/2002
IP FEATURE PROGRAMMING
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