Synonyms and related words :
DDD, PBX operator, apart, asunder, at a distance, away, busy signal, buzz, call, central, dial tone, direct distance dialing, distal, distant, exotic, far, far off, faraway, local call, long-distance call, long-range, mobile call, operator, person-to-person call, phone call, remote, removed, ring, separated, station-to-station call, switchboard operator, telephone call, telephone operator, telephonist, toll call