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The codec G.711 with a sample rate of 20 ms (without encryption) is required both for the IP
trunking link and for the HFA terminal points. This requires an STMI2 module (2 DSPs on board
= 32 voice channels are supported).
HiPath 3800
LAN 1
(15 + 16)
32 PBX Networking
31 Gateway
Channels
Channels
96 HFA Clients
Figure 2-9
IP Trunking and HFA Clients
Calculation:
Thirty-one gateway channels via LAN 1 should be taken into account. If more than 16 channels
are required, the feature "Enhanced B Channels" must be activated. Firewall and encryption
are not possible in this example. The signaling load (16 PBX networking channels and 96 HFA
clients) must also be taken into account.
Table 2-49
Calculation for IP Trunking and HFA Clients
Signaling: IP phones (without H.235)
Signaling: PBX networking channels (without H.235)
Gateway channels: payload (G.711/20ms)
Total
With a permissible maximum points total of 980, this scenario is feasible. However, this sample
calculation does not apply for HXGS/R3. This is because the static configuration rules only al-
low a maximum of 16 channels per board card.
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
Head Office
Head Office
ISDN
LAN 2
Intranet
Function
Dynamic Configuration Rules
Branch Office
ISDN
LAN 2
Intranet
Formula
96
0.68
·
16
3.2
·
31
11
·
sysdat.fm
System Data
HiPath 3800
LAN 1
Points
65
51
341
477
2-69
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