Plain-language definition
The SS7 layer that routes messages by Global Title.
Technical definition
SCCP provides connectionless (Class 0/1) and connection-oriented services and Global Title Translation, addressing nodes by GT, point code and subsystem number.
Why it matters
GT-based routing is how international SMS reaches an operator, and GT abuse is a core grey-route indicator.
Last reviewed 2026-09-12 by the Guardivia QoS Engineering Team. Product facts on this page describe current capabilities; items marked “where supported”, “optional”, “integration” or “consultancy” are confirmed per deployment.