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SIPPS (Internet telephony)
Gigaset M34 USB App / en / A31008-M403-R102-x4-7619 / Sipps.fm / 03.08.2006
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hablone 2
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SIPPS (Internet telephony)
Safety precautions
Exclusion of liability
The SIPPS software is used at your own risk.
Siemens Home and Office Communication Devices GmbH & Co. KG accepts no liability
or warranty for this program, including when it is used in conjunction with other prod-
ucts.
System requirements for SIPPS
For perfect transmission quality for Internet telephony, note the system requirements
recommended for the SIPPS software:
u
Operating system Windows 2000 or Windows XP, Server 2003, DirectX 8 min.
u
Processor 500 MHz
(min. 400 MHz)
u
Main memory 128 MB RAM
(min. 64 MB RAM)
u
Free memory space 30 MB
(min. 20 MB)
u
Audio hardware: Full duplex soundcard with headset
or Gigaset M34 USB
u
Internet connection: ISDN or broadband, e.g. DSL
(min. 56.6 Kbps modem)
What is SIPPS?
With SIPPS you have a functioning Voice over IP telephone with which you can use
tomorrow's technology today.
To establish a direct connection between the participants in a call SIPPS requires the cur-
rent IP address for each caller. Most private Internet users are given a new IP address
each time they dial up the Internet; it therefore follows that the corresponding SIP
address also changes on each occasion. To avoid this problem what is known as registrar
services (such as DynDNS.org) are operated which assign each current IP for the Internet
connection to an address that remains the same. SIPPS
uses Internet connections
already in existence for transmission. This enables a much more economical use of the
facilities available. The zipped files are divided into packages and transported to their
destination. At the destination, for example a second SIPPS or any SIP-compatible client,
the data packages are converted once again into a voice signal. It is possible to make
calls to the fixed network with SIPPS
by means of interfaces known as gateways as these
gateways forward calls both to the Internet and from the Internet to the public tele-
phone network.