SMS Term
SMS (Short Message Service)
Standard text messaging limited to 160 characters per message segment. The most widely supported messaging format, reaching 98% of mobile phones regardless of smartphone or data connection.
Related Terms
Campaign Registration
Registering your specific message type (marketing, alerts, etc.) with mobile carriers after brand registration. Required for A2P 10DLC compliance and determines your messaging throughput limits.
A2P (Application-to-Person)
Automated text messages sent from a software application to a customer's phone. This includes marketing campaigns, appointment reminders, and transactional alerts. A2P messaging requires carrier registration for compliance.
Long Code
A standard 10-digit phone number used for one-to-one messaging. Ideal for low-volume, conversational SMS and two-way communication with customers.