Ip Payload Switching - Siemens HiPath 3000 Series Service Documentation

h3h5_in_the_lan.fm
HiPath 3000/5000 in the LAN Network

IP Payload Switching

13.8 IP Payload Switching
Introduction
IP payload switching optimizes communication between LAN-based IP workpoint clients.
In HiPath 3000 V1.2 and lower, two B-channels (with two DSP resources) in the HiPath HG
1500 and the HiPath 3000/5000-internal switching network were seized for internal network
calls.
In HiPath 3000/5000 V3.0 and later, VoIP voice data (payload) is transferred directly between
two IP workpoint clients in the network. When this happens, both IP workpoint clients have full
access to all system features.
Payload switching is also implemented for IP networking (PBX routing).
By ceasing to use B-channels, we have managed to preserve HG 1500 resources and facilitate
a higher volume of network-internal call traffic.
A B-channel is still required on the HG 1500 for connections to the following stations and lines:
U stations
●
P0/E
Analog stations
●
ISDN stations
●
trunk and tie lines (MSI, S
●
Example: a consultation call to an optiPoint 500 telephone is set up during an existing connec-
tion between two IP workpoint clients. A HG 1500 B-channel is necessary for this consultation
call.
In the case of conferences, the number of B channels seized corresponds to the number of sta-
tions and IP workpoint clients involved.
A HG 1500 DSP resource is permanently reserved for playing music-on-hold.
Example: a license was acquired for two B channels and six clients. 6 telephones were logged
on. The following scenario is possible in this case: two stations can conduct an external call,
while two stations are listening to Music on Hold and two stations are talking to each other.
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HiPath 3000/5000 V9, Service documentation