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Appendix
Gigaset C450 IP / IM-Nord EN / A31008-M1713-R201-3-7643 / appendix.fm / 15.02.2007
Version 4, 16.09.2005
General specifications
Gigaset C450 IP – Free software
Your Gigaset C450 IP's firmware contains,
amongst other things, free software that
is licensed under the GNU Lesser General
Public License. This free software was
developed by a third party and is protected
by copyright. You will find the licence text
in its original English version on the pages
that follow.
The software is provided free of charge.
You are authorised to use this free soft-
ware in accordance with the above-men-
tioned licence conditions. In the event of
contradictions between these licence con-
ditions and the licence conditions that
apply for the software according to
Siemens Home and Office Communica-
tion Devices GmbH & Co. KG, the above-
mentioned licence conditions shall take
precedence for the free software.
The GNU Lesser General Public License
(LGPL) is supplied with this product. You
can also download the licence conditions
from the Internet:
u The LGPL is available on the Internet at:
http://www.gnu.org/copyleft/
lesser.html
u The source text, including copyright
notices for free software, is currently
available on the Internet at:
http://www.siemens.com/developer/
c455ip
For more information and Internet links to
the source text of the free software, see
the Online Support pages on the Internet
at:
www.siemens.com/gigasetcustomercare
Interfaces Fixed network, Ethernet
DECT standard is supported
GAP standard is supported
No. of channels 60 duplex channels
Radio frequency
range
1880–1900 MHz
Duplex method Time multiplex,
10 ms frame length
Channel grid 1728 kHz
Bit rate 1152 kbit/s
Modulation GFSK
Language code 32 kbit/s
Transmission
power
10 mW,
average power per chan-
nel
Range up to 300 m outdoors,
up to 50 m indoors
Base station
power supply
230 V ~/50 Hz
Environmental
conditions for
operation
+5 °C to +45 °C;
20% to 75% relative
humidity
Dialling mode DTMF (touch tone dial-
ling)/DP (dial pulsing)
Flash time 250 ms
Codecs G711, G726, G729AB with
VAD/CNG
Quality of Service TOS, DiffServ
Protocols DECT, SIP, RTP, DHCP, NAT
Traversal (STUN)
Base station
dimensions
105 x 132 x 46 mm
(L x W x D)
Dimensions,
handset
141 x 53 x 31mm
(L × W × H)
Base station
weight
130 g
Weight of handset
with battery
116 g
34


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