User`s guide
Courtesy of Main Resource, Inc. Visit us at www.MainResource.com or call 800 362-6740 for all your 
telecom needs. 
Page 7 of 16  
To Disconnect from a Call Between You and Two Outside Lines – 
Dial “#” and hang up. 
To Rejoin – 
Press one of the lighted line buttons. 
Other Features of Your Comdial Digitech or DSU Telephone 
Display Contrast Adjustment – 
1.  Press OPTIONS, 
2.  Press NEXT twice 
3.  Press DISP 
4.  Press LIGHT or DARK until desired level is achieved. 
5.  Press SPEAKER to save and end. 
Block Voice Announce Calls – 
1.  Press OPTIONS 
2.  Press VAB 
3.  Press ON 
4.  Press SPEAKER. 
Cancel Block on Voice Announce – 
1.  Press OPTIONS 
2.  Press VAB 
3.  Press OFF 
4.  Press SPEAKER to end. 
Block SOHVA while you are on a Call – 
Press BLOCK. 
Display the Button Functions for Your Station – 
1.  Press OPTIONS 6 times 
2.  Press QUERY 
3.  Press any button and read the function on the LCD display 
4.  Use SHIFT to read autodial numbers stored under DSS buttons 
5.  Press SPEAKER to end. 
Account Codes – 
If code entry is enabled, you may either be forced to enter an account code before dialing or 
answering a call, or you may choose to do so to enhance reporting data. 
To Use Account Codes with and Incoming Call: 
1.  Press INTERCOM 
2.  Dial “*04” (call is automatically placed on hold) 
3.  Dial the account code number or the preprogrammed ACCOUNT CODE button (call is not 
automatically placed on hold) 
4.  Dial the account code number. 










