SS7
SS7 or SS 7 stands for:
- Signaling System 7 , a protocol family in telecommunications
- Strada Statale 7 Via Appia , an Italian state road
- CR Series SS7 , CR Series SS7B , CR Series SS7C , CR Series SS7D , CR Series SS7E , China Railways Electric Locomotive Series
SS-7 stands for:
- USS Porpoise (SS-7) , American submarine
- SS-7 Saddler , the USSR's first mass-produced ICBM
