<h1>Telecom operators implement SMS header suffix system with P, S, T, G codes to combat spam and improve transparency</h1> Telecom operators have implemented suffix systems on SMS headers to help mobile users identify message types, with 'P' for promotional, 'S' for service-related, 'T' for transactional, and 'G' for government communications. This categorization system, mandated by telecom regulations, aims to enhance transparency and reduce spam by enabling subscribers to easily distinguish between genuine and unwanted messages. However, industry representatives express concern that spammers are increasingly using unregulated over-the-top messaging apps, creating regulatory gaps that undermine anti-spam efforts and pose privacy and security risks.