
Button Mapping for MERLIN 410 and MERLIN 820 Systems
Following is a diagram of the button assignments on a 
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  | Time/Timer  | 
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  | Set  | 
  | Exit  | 
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  | Start  | 
  | Stop  | 
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  | Fwd  | 
  | Rev  | 
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  | 4  | 
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  | 8  | 
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  | 3  | 
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  | 7  | 
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  | 2  | 
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  | 6  | 
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4  | 
  | 1  | 
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  | 5  | 
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3  | 
  | A  | 
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  | B  | 
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2  | 
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1  | Conference  | 
  | Transfer  | 
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A  | 
  | D  | 
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  | Hold  | 
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  | Pause  | 
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  | ABC  | DEF  | 
  | Drop | 
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  | 1  | 
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  | 2  | 3  | 
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  | GHI  | 
  | JKL  | MNO  | 
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  | 212  | 555  | 1212  | 
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  | MSG  | 
  | ON  | 
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  | 4  | 
  | 5  | 6  | 
  | 5  | 
  | 6  | 7  | 8  | 
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  | 1  | 
  | 2  | 3  | 4  | |||
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  | PRS  | 
  | TUV  | WYZ  | 
  | A  | 
  | B  | C  | D  | 
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  | 7  | 
  | 8  | 9  | 
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  | *  | 
  | Oper  | #  | 
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  | 0  | 
  | On/Off  | Redial  | Mute  | 
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  | Feat/P  | 1  | 
  | 2 ABC  | 3 DEF  | 
  | C  | Message  | HFAI  | Mic  | Spkrphone  | Volume  | 
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  | Conf  | 4 GHI  | 5 JKL  | 6MNO  | ||
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  | Trans  | 7PQRS  | 8 TUV  | 9WXYZ  | |
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  | Hold  | 
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  | 0OPER  | 
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  | Recall  | 
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  | TransTalk  | ||
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The button labeled C and the button labeled D on the MDW 9030P Pocketphone display automatically default to the buttons labeled C (Recall) and D (Drop), respectively, on the 7315H phones.