Siemens HiPath 3000 Service Manual

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P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
13-3
IP Fundamentals
IP Network Requirements
13.2.3 Standards Supported
HiPath 3000/5000 V5.0 supports the standards listed in the following table.
“Clear Channel” transmission mode is characterized by the fact that signals are transmitted dig-
itally and the connection is bit-transparent. There is no compression. The transmission rate is
64 Kbps.
Table 13-1 Standards Supported
Standard Transmission
rate
1
1 The bandwidth actually required in the LAN, for example, may be considerably higher. Here are some relevant factors:
– Data Link Layer used: Ethernet (with or without VLAN), PPP, Frame Relay ...
– Protocols with/without compression: RTP, UDP, IP
– Security: VPN tunnel ...
– Redundancy: For example T.38
– Packaging: the number of samples that are transported per package.
Notes
G.711 ITU standard for voice
codecs
64 Kbps ISDN voice quality
G.722 High-quality voice co-
dec
48, 56 or
64 Kbps
Better voice quality than G.711
G.723.1 ITU standard for voice
codecs
5.3 or 6.3 Kbps Adequate voice quality
G.729 Group of ITU stan-
dards for voice codecs
8 Kbps Less delay and better voice quality than
G.723.1
G.729A ITU standard for voice
codecs, based on
G.729
8 Kbps Less delay and better voice quality than
G.723.1
G.729AB ITU standard for voice
codecs, based on
G.729A
8 Kbps Less delay and better voice quality than
G.723.1
T.38 ITU standard for fax
transmission (Realtime
FAX)
14 Kbps Governs communication from group 3
fax devices over IP networks

Siemens HiPath 3000 Specifications

General

Brand	Siemens
Model	HiPath 3000
Category	Telephone
Language	English