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1.0 PRODUCT FEATURE DESCRIPTION
1.1 Network standard
Benefon Twin is a dual band GSM phone operating seamlessly between the bands.
For GSM900 Benefon Twin operates only on primary P-GSM band, i.e. transmitting
on 890 - 915 MHz (mobile transmit, base receive) and receiving on 935 - 960 MHz
(base transmit, mobile receive) For GSM1800 Benefon Twin transmits on
1 710 - 1 785 MHz (mobile transmit, base receive) and receiving on 1 805 - 1 880
MHz (base transmit, mobile receive). Benefon Twin does not support E-GSM band.
Maximum output power on lower band is 2 W and on upper band 1 W. Thus Benefon
Twin belongs to power class 4 on lower band and to power class 1 on higher band.
Benefon Twin standard GSM Full Rate speech coding and Enhanced Full Rate
speech coding EFR. Benefon Twin supports full duplex, circuit switched asyn-
cronous data services on data rates 300 bit/s, 1200 bit/s, 4.8 kbit/s, 9.6 kbit/s and
14.4 kbit/s. These data rates can be used for sending PC FAX. Additionally Twin
supports V.110 ISDN connection, Radio Link Protocol, RLP., and a set of GSM 07.07
AT commands. No syncronous data services and no alternate speech/data calls are
supported.
Benefon Twin supports Short Message Service and Short Message Service Cell
Broadcast. Depending on the network configuration Twin also supports concate-
nated short messages up to length of 640 characters.
1.2 Physical dimensions
Maximum length of the Twin is 112 mm; maximum width 49 mm and maximum thick-
ness is 27 mm.
Weight of the phone is 108 g with 650 mAh Li-On battery pack and 126 g with 800
mAh NiMH and 1050 mAh Li-On battery pack.
1.3 Display
Display is a custom full-graphic display. It will have 48 pixel rows and 100 columns.
1.4 SIM
Benefon Twin is using small plug-in SIM card. SIM interface is guaranteed to work
only with 5 V SIM cards.
2gp_71gb.fm
Product: TGP71EU & TGP73EU
08.02.2002
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