No person shall use or cause to be used any electrical or mechanical device or attachment to any telephone in any burglary, fire or other emergency alarm system which automatically selects or dials a telephone or telephone trunk line used by or assigned to the City for telephone service, which system then transmits over such line a report or alarm concerning a burglary, fire or other police emergency, except a special telephone line which will be made available for this type of emergency alarm system. The cost to the City for this special telephone and line will be assessed against the subscribers and/or property owners using the alarm system, the payment of which within thirty days of billing shall be a condition of continued use of such special line. (Ord. 1248-1974. Passed 5-20-74.)