Page 37  01/2007 AMT/PTD/PBX/0062/1/2EN 
3.14.3  PHYSICAL DESCRIPTION OF AN OPENPHONE 28 
3.14.3.1 DESCRIPTION 
 
The OPENPHONE 28 mobile terminal comprises the following items: 
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A portable handset with its battery 
A charger 
A power supply cable and mains power unit 
A belt clip kit 
For more information, refer to “OPENPHONE 28 User’s Guide’’.   
 
 
 
3.14.3.2 SPECIFICATIONS 
 
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Standards:  DECT standard, DeTeWe protocol (proprietary),  GAP compatible 
Frequency: 1.88 - 1.9 GHz 
Dimensions:  138 x 47 x 21 mm 
Weight: approx. 117 g  
Rechargeable battery: NiMH; 650 mAh 
Autonomy in conversation mode: Up to 8 hours 
Autonomy in standby mode: Up to 75 hours 
Charging time: approx. 5 hours 
Power: 10 mW (average) 250 mW (maximum) 
working temperature:  -10° C to +45° C (portable handset) +5° C to +40° C (charger)