Elektro power system produces coin pay phone with special dolby type technology to reduce disturbance. This phone has lcd display, which shows deposited amount, dialed number and balance time. Sixteen digits alphanumeric lcd display makes operations and programming easier. An indicator in the pay phone indicates if the box becomes full. The phone is self-serviceable for coin jam. All features are keyboard programmable with electronic lock. Main advantages of these phones are that they accept all one rupee coins and non re-settable cumulative meter reading avoids loss due to meter tampering.