Plain-language definition
The network element that stores, routes and delivers SMS.
Technical definition
An SMSC terminates MAP SMS operations (MO-ForwardSM, MT-ForwardSM, SRI-SM, AlertSC, ReportSM-DeliveryStatus), stores messages for unreachable subscribers, schedules retries and exposes SMPP/HTTP to applications. Guardivia Operator SMSC is a software-only implementation.
Why it matters
The SMSC is the anchor of operator messaging; owning it means owning routing, CDRs and enterprise connectivity.
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.