... the radiotelephone alarm signal for not less than 30 seconds and not more than 60 seconds unless manually interrupted; ... This section specifies the requirements for voluntary digital selective calling (DSC) equipment and selective callinganbsp;...
|Title||:||Code of Federal Regulations, Title 47, Telecommunication, PT. 80-End, Revised as of October 1, 2012|
|Author||:||Office of the Federal Register (U S )|
|Publisher||:||Office of the Federal Register - 2013-01-28|