Abstract: This invention relates to a contemporary paging type telephone for use in coal mines, with an added dial feature to work in conjunction with a local telephone switchboard or central telephone office switchboard. It provides the features of a contemporary single channel paging telephone system with the additional advantages of:1. Multiple private line conversations2. Localized paging via dial system--calling party can name the person being called, avoiding confusion;3. All-station paging ability to locate roving personnel.The mine dial/page phone has a rotary dial adaptation and loudspeaker paging facility and is connected to an above-ground conventional telephone line by means of an interface device, also above ground. The interface, one for each line, renders the telephone dialing system permissible for use in coal mines. The interface also provides, automatically, the emergency function required to support communications should there be a failure of telephone switchboard or central office service.