Ip Telephones/Clients For Isdn And Itsp Connection In Hipath 3800 - Siemens HiPath 3000 Series Service Documentation

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2.5.4.2.7

IP telephones/clients for ISDN and ITSP Connection in HiPath 3800

Conditions
The following conditions apply to this scenario:
100 IP telephones/clients (without H.235) are connected to HiPath 3800 .
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It should be possible to conduct eight simultaneous calls to the ISDN exchange as well as
●
eight simultaneous calls to the ITSP.
The voice and data traffic to the Internet is relayed via an external router that also functions
●
as the firewall. Therefore, the feature "Enhanced B channels" in the WBM of HG 1500
should be activated.
1 STMI2 board is to be used.
●
Configuration Notes
The IP telephones/clients as well as the calls to the ITSP must be taken into account for sig-
naling. 8 gateway channels to the ISDN trunk are required for the 8 simultaneous calls. No
gateway channels are required for the 8 simultaneous calls to the ITSP thanks to the feature
"IP/IP e2e payload via enterprise proxy".
Graphical overview
8 gateway channels to the ISDN
(Codec G.711 [20 ms])
Figure 2-14 IP telephones/clients for ISDN and ITSP Connection in HiPath 3800
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
Head Office
HiPath 3800
HG 1500
LAN 1
100 stations (CorNet-IP [HFA], H.323, System)
ISDN
LAN 2
No gateway channels to the ITSP,
only signaling required
Intranet
Router
System Data
Dynamic Configuration Rules
Internet
sysdat.fm
ITSP
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