CCITT developed the Signalling System 7 (SS7) specification. SS7 is a common channel signalling system.

The SS7 network and protocol are used for:

• basic call setup, management, and tear down
• wireless services such as personal communications services (PCS),
• wireless roaming, and mobile subscriber authentication
• local number portability (LNP)
• toll-free (800/888) and toll (900) wireline services
• enhanced call features such as call forwarding, calling party name/number display, and three-way calling
• efficient and secure worldwide telecommunications

Among the protocols in the suite are:

BICC, BISUP, DUP, ISUP, MAP, MTP-2, MTP-3, Q.2140, SCCP, TCAP and TUP .

RADCOM's products support a wide range of SS7 protocols.