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  | Topcom Butler 4502/Twin/Triple/Quattro  | 
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  | 7 Troubleshooting | 
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  | Symptom | Possible cause | Solution | 
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  | No display  | Batteries uncharged  | Check the position of the  | 
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  | batteries  | 
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  | Recharge the batteries  | 
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  | Handset turned OFF  | Turn ON the handset  | 
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  | No tone  | Telephone cord badly  | Check the telephone cord  | 
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  | connected  | connection  | 
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  | The line is occupied by  | Wait until the other handset  | 
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  | another handset  | hangs up  | 
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  | The icon  | 
  | flashes  | Handset out of range  | Bring the handset closer to  | 
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  | the base  | 
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  | The base has no power  | Check the mains connection  | 
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  | supply  | to the base  | 
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  | The handset is not registered  | Register the handset on the  | 
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  | on the base  | base  | 
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  | Base or handset do not ring  | The ringing volume is zero or  | Adjust the ringing volume  | 
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  | low  | 
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  | Tone is good, but there is no  | The dialling mode is wrong  | Adjust the dialling mode  | 
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  | communication  | 
  | (pulse/tone)  | 
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  | Not possible to transfer a call  | The FLASH time is too short  | Set the unit to Long Flash  | 
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  | on PABX  | 
  | time  | 
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  | Telephone does not react to  | Manipulation error  | Remove the batteries and put  | 
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  | pressing the keys  | 
  | them back in place  | 
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8 Topcom warranty
8.1Warranty period
The Topcom units have a 
The warranty has to be proven by presentation of the original purchase receipt, on which the date of purchase and the 
ENGLISH
Topcom Butler 4502/Twin/Triple/Quattro  | 23  |