Siemens HiPath 3000 Series Service Documentation page 1107

Nur für den internen Gebrauch
Signaling Resources
These include all of the node-specific signaling data required for Voice over IP for IP-supported
(LAN, Intranet, Internet) and circuit-switched networks (ISDN, PSTN). These resources are
centrally provided by a single HG 1500 board, the signaling gateway (= Gatekeeper HG 1500),
regardless of how many HG 1500 boards are available at the node. A HG 1500 board is defined
as a gatekeeper HG 1500 using HiPath 3000 Manager E.
Payload Resources
The node resources required for transferring VoIP voice data (payload) between IP-supported
and circuit-switched networks are provided by the media gateway. One or more HG 1500
boards may be used.
No payload resources are required for direct transfer between IP-supported networks.
In the case of systems with only one HG 1500 board, this board operates both as a signaling
gateway and as a media gateway when configured appropriately by HiPath 3000 Manager E.
In the case of systems with more than one HG 1500 board, payload resources are monitored
by the node-central resource manager. This is a self-configuring service. Signaling resources
are centrally provided by the first HG 1500 board. This signaling gateway also accesses other
media gateway resources (codecs, B channels) and signaling data (for example, RTP, RTCP).
This gives IP workpoint clients and other gateways access to central payload resources of all
HG 1500 boards in a node.
Resources for functions not based on H.323 (for example, routing channels) are still provided
by each HG 1500 board. In systems with several HG 1500 boards, resources are provided ex-
clusively by media gateways for performance reasons.
Features of HG 1500 V3.0 or later
Transparent B channel for ISDN B channel protocols
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Flexible port number administration
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Dynamic jitter buffer
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SNTP functionality in the LAN
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Read rights to dynamic parameters of HiPath 3000 Manager in WBM
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Improved firewall function (stateful inspection, DoS, application level gateways)
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T.38 fax protocol standard support
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HFA workpoint support
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Logging of QoS data (Quality of Service)
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Licensing system as for HiPath 3000/5000
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A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
HiPath 3000/5000 in the LAN Network
h3h5_in_the_lan.fm
HG 1500 Board
13-9