(a) The contents of the recorded message to be transmitted by such device must be intelligible and in a format approved by the Police Chief as appropriate for the type of emergency being reported.

(b) Upon a single stimulus of the alarm device, an automatic dialing device may place two separate calls to the Police Department via the special trunk line. No such call shall be longer than one minute in duration. There must be at least three minutes between the completion of the first call and the initiation of the second, and the second call must be clearly identified as a second call.

(c) Messages transmitted during such second calls, stating the location and nature of the alarm condition, shall not exceed 30 seconds in length.

(d) The time gap between delivery of messages must be less than five seconds.

(e) All such devices shall be capable of transmitting an emergency message to two or more separate locations, so that upon activation any message may be sent not only on a special trunk line or telephone line serviced directly by telephone operators, but also to a location where an authorized person could be available to respond to the emergency message, and to open the premises on which the device is installed.

(f) The sensory apparatus and hardware comprising such devices shall be maintained by the owner or lessee in such physical condition that false alarms will be minimal. (Code 1981 § 34-144. Code 1995 § 62-113.)