Plain-language definition
Keeping a message until it can be delivered.
Technical definition
The SMSC persists undeliverable messages, applies validity and expiry rules, and retries on schedule or on AlertSC.
Why it matters
Store-and-forward is the defining reliability feature of an SMSC.
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.