Specifications

hg-09.fm
A31003-H3580-M103-2-76A9, 01-2009
HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
9-15
Nur für den internen Gebrauch
Technical Concepts
Configuration Rules for HG 1500 V8 in HiPath 3000 V6
9.4.2 Direct Media Connection
DMC (Direct Media Connection – Interworking with HiPath 4000 systems) allows improved
voice quality between IP components (terminal devices, Gateways) within the HiPath 4000 net-
work. DMC is only supported by the CorNet NQ/CorNet IP networking protocol.
DMC should be deactivated in a homogenous HiPath 3000/5000 network. Once a HiPath 4000
network (version 2.0 and later) has been configured with DMC, DMC should also be activated
in the HiPath 3000/5000 systems.
HFA terminal devices (optiPoint/optiClient) registered to HiPath 3000 or HiPath 5000, and even
a HiPath 3000 system itself, are then able to receive DMC connections set up by HiPath 4000
and its HFA terminals.
DMC is not used within HiPath 3000/5000 systems when active.
Activating DMC reduces DSP channel resources. In a HiPath3000 system, this means that only
80% of the channels per DSP are available for connections (e.g. 6 channels instead of 8, 12
instead of 16, 48 instead of 60).
9.4.3 Gateway Channels (DSP Channels)
Gateway connections are needed for connections to TDM workpoint clients and trunks, which
require a gateway channel on the HG 1500 board. TDM workpoint clients and trunks include
● U
P0/E
stations (optiPoint 500)
● CMI stations
● Analog station
● ISDN station
● Trunks and tie-line trunks (HKZ, S
0
, S
2M
)
Examples: A consultation hold is initiated with an optiPoint 500 telephone from an existing con-
nection between two IP workpoint clients. A gateway channel from the HG 1500 board is need-
ed for this consultation call.
An IP workpoint client seizes a trunk. A gateway channel from the HG 1500 board is needed
for this trunk.
In the case of conferences, gateway channels are seized according to the number of participat-
ing stations and IP workpoint clients.
Required Channels for Gateway Connections
With the following table, you can calculate the number of gateway channels (HG 1500 boards)
required from the existing number of IP workpoint clients.
These calculations are based on the following assumptions: