Tele-Communication (Telecom) Terms Glossary and Dictionary
C-link: Cross Link
SS7 Cross Link (C-link) connects STPs performing identical functions into a mated pair. A C-link is used only when an STP has no other route available to a destination signaling point due to link failure(s). Note that SCPs may also be deployed in pairs to improve reliability; unlike STPs, however, mated SCPs are not interconnected by signaling links.