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SureM Blog

Insights on business messaging — SMS, MMS, RCS, SMPP, and Voice OTP — across 200+ countries and 800+ carriers.

International SMS Compliance, Part 1: Understanding US and European Requirements
sms

International SMS Compliance, Part 1: Understanding US and European Requirements

Understanding these differences is essential for businesses sending authentication codes (OTP), transactional notifications, delivery updates, or promotional messages to customers overseas. In this first article, SureM explains the major SMS compliance requirements in the United States and Europe, along with practical steps businesses should consider before launching international messaging campaigns.

October 29, 2026
RCS vs. WhatsApp: How Global Banks and Fintechs Are Enhancing Fraud Prevention & Customer Trust
A2P talk

RCS vs. WhatsApp: How Global Banks and Fintechs Are Enhancing Fraud Prevention & Customer Trust

However, traditional A2P (Application-to-Person) SMS, despite its universal reach, has become an increasingly vulnerable vector for cybercriminals. Smishing (SMS phishing), caller ID spoofing, and SIM swapping attacks have eroded consumer confidence in standard text messages. To mitigate fraud and rebuild customer confidence, leading financial institutions are fundamentally rethinking their enterprise messaging architecture. The answer lies in next-generation rich messaging channels: RCS (Rich Communication Services) and WhatsApp Business API.

October 8, 2026
How Businesses Can Use SMS, LMS, and MMS for Different Customer Communications
InternationalSMS

How Businesses Can Use SMS, LMS, and MMS for Different Customer Communications

Sometimes a business needs to provide more information than can comfortably fit into a short SMS. This is where LMS (Long Message Service) can be useful, particularly for businesses communicating with customers in South Korea. LMS allows businesses to send longer text-based messages and is commonly used for detailed notifications, service information, and customer notices. SureM's current service information describes LMS as a Korea-focused long-message format supporting up to approximately 2,000 bytes.

September 21, 2026