Ip Networking Channels (Pbx Networking Channels); Dmc (Direct Media Connection) Channels - Siemens HiPath 3000 Service Manual

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Workpoint Clients

IP Telephony (Voice over IP)

IP Networking Channels (PBX Networking Channels)

IP networking channels are used for connections between communication systems. In this

case, a distinction must be made between connections that use a gateway channel and direct

payload connections. Depending on the connection, the following resources are required for

successful connection setup.

Connection type

Direct payload connection

Gateway connection

A connection request is rejected if a required resource is unavailable.

HiPath 3000 Manager E is used to define how many of the maximum number of lines are to be

configured as IP networking channels (IP network trunks). The maximum number of IP network

trunks can be found in Table 2-7.

When the DMC interworking feature is active in an IP network between HiPath 3000 and HiPath

4000, gateway connections are set up over DMC channels. From the user's perspective, a DMC

channel is a gateway channel that provides a gateway connection between HiPath 3000 and

HiPath 4000. The fact that a DMC channel must serve both a master and slave connection re-

sults in a DSP channel reduction.

Note: The number of gateway channels available (DSP channels) is reduced as soon as the

DMC interworking feature is activated with HiPath 3000 Manager E. In this case, a Digital Sig-

nal Processor (DSP) can only provide up to 80% of all possible channels (for example: 6 in-

stead of 8 DSP channels, 12 instead of 16 DSP channels, etc.).

HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual

Gateway channel

Not required

P31003-H3550-S403-4-7620, 02/05

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