Emergency Caller Products EC4 Programming Manual page 6

1-800-227-1592 www.emergencycaller.com
If your phone system requires dialing a digit to get an outside line
or dial tone, Press 1 (ON).
If your phone system does not require a digit to get an outside line
or dial tone, Press 2 (OFF).
If you pressed 1 (ON)
LCD will display
Enter the number to dial out (1 digit)
LCD will display