
Topcom Butler 4850Twin/Triple/Quattro
5.14 Prefix
You can set a Prefix number which will always be dialed out automatically before you enter the telephone number you want to dial. This number will always be dialed even when calling from phonebook memory, redial, etc...
5.14.1 To Edit or Delete the prefix number:
Press Menu button 
 Use the Right 
 button to scroll to ‘PREFIX’ and press OK 
  Delete the digits by the Mute 
 
 to confirm.
When a prefix number is set, all numbers dialed out will be with this prefix!
5.14.2 Temporaly dial out without prefix
Enter the telephone number and press the Line button 
 until the handset 
 icon appears on the display. The number will be dialled out without Prefix  Press the Line button 
 when you want to terminate the call.
5.15 Using the alphanumerical keypad
With your telephone you can also enter alphanumeric characters. This is useful for entering a name into the phonebook, giving a name to a 
To select a letter, press the corresponding key as many times as is necessary. For example to select an ‘A’, press ‘2’ once, to select a ‘B’, press ‘2’ twice and so on. To select ‘A’ and then B consecutively, select ‘A’, wait until the cursor moves on to the next character, then press ‘2’ twice.
To select a space, press 0.
The keypad characters are as follows:
Key  | First  | Second  | Third  | Fourth  | Fifth  | Sixth  | Seventh  | Eighth  | 
  | press  | press  | press  | press  | press  | press  | press  | press  | 
1  | +  | -  | /  | 1  | 
  | 
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2  | A  | B  | C  | 
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3  | D  | E  | F  | 
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4  | G  | H  | I  | 
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5  | J  | K  | L  | 
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6  | M  | N  | O  | 
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7  | P  | Q  | R  | S  | 
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8  | T  | U  | V  | 
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9  | W  | X  | Y  | Z  | 
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0  | Space  | 
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12  | Topcom Butler 4850/Twin/Triple/Quattro  |