PRS is a new non-voice value added services that allows information to be
sent and received across a GSM mobile telephone network. It supplements
today’s Circuit Switched Data (CSD) and Short Message Services (SMS).
G
circuit switched GSM network. This gives the option to use a packet-based data
service. The information is split into separated but related “packets” before being
transmitted and reassembled at the receiving end. Theoretically, maximum speeds
of up to 171.2 kilobits per second (kbps) are achievable with GPRS using all eight
timeslots at the same time. This is about 3 times as fast as the data transmission
speed possible over today’s fixed telecommunications networks and 10 times as fast
as current Circuit Switched Data services on GSM networks.
GPRS involves overlaying a packet based air interface on the existing
Figure1. Example of GPRS data transmission
Example: Cell with 1 Frequency channel:
1 physical channel for signalling, 4 physical channels for Circuit switched
and 3 physical channels for Packet switched
• New sound concept with polyphonic ringing tones / social
noises
• Kjava (identical to K45-Manta)
• LiIon Battery Pack 700 mAh
• Power Input: 1.8 A (0.6 ms) / 0.2 A (4 ms)
• Cut-off Threshold 3.2 V
• approx. 250 h measured at BSPAMFRMS = 9; number of
neighbouring cells = 0
• Best case approx. 5 hours (lowest output level with DTX)
• Worst case approx. 2.5 hours (highest output level without
DTX)
• Conditions for DTX: 40% user talk time
• Small (=”Plug In“) 1.8 V or 3 V-SIM card (Phase II).
• To insert the SIM the battery pack must be removed.
• The SIM reader coding will be realized by lower case.
• Full Rate, Enhanced Full Rate, Adaptive Multi Rate and
Half Rate speech coders are available as standard.
• Type: Full Graphic
• Resolution: 101 X 64 Pixel
• Illumination: Amber
• 12-digit block (0-9, #, *), small letters
• two function keys (SEND, END)
• ON/OFF key combined with the END key; the symbol ¢ (I
inside O) is used as a symbol for ON/OFF.
• 4 way navigation key as centered rocker type (up&down / 2
softkeys on left & right position)
• amber as illumination colour
• orientation at the housing in the area between keys “5“ and
“8”
• comfortable earpiece with optimal acoustics
• unidirectional microphone (similar to SL45 with modified
rubber gasket)
• loud signal emitter (soundringer) (>100dB(A) SPL @5cm,
'Hongkong-Spec.')
• different call melodies (for the amount see SW product
description). Realized with DSP firmware sound solution. All
melodies with increasing volume because of the danger of
acoustic shock. Additional measures to protect from
acoustic shock, see SW product description.
Due to changes on the connector from “Lumberg” to “Slim
Lumberg”, accessories using the old “Lumberg” connector will
not be able to be used on the new “Slim Lumberg” platform.
C55 Original Accessories
EMEA Portfolio
Basics
Basics
Li-Ion
Carry Set
Carry Set
FCS-500
FCS-500
CLIPit
CLIPit
Covers
Covers
Carrying
Carrying
Cases
Cases
ICM MP CCQ SF www.my-siemens.com/customercarePage 1