🚀 Modernized for 5G & Next‑Generation Networks

The updated specification strengthens requirements for 5G NR devices, covering both sub‑6 GHz and mmWave bands. Manufacturers must demonstrate full compliance with enhanced transmitter and receiver performance criteria, ensuring better reliability, improved spectral efficiency, and robust operation in Singapore’s rapidly expanding 5G environment.

📞 VoLTE Now Mandatory for Voice‑Capable Devices

All devices designed for voice calls must now support VoLTE by default, with full interoperability across Singapore’s mobile operators. This ensures consistent call quality while supporting the nation’s transition away from legacy networks.

📢 Enhanced Emergency Cell Broadcast: SG Alert

One of the most impactful updates is the expanded support for national emergency alerts. Devices must now:

• Present alerts automatically without user interaction
• Support multilingual messages
• Use a standardized mandatory alert tone and vibration pattern
• Override “Do Not Disturb” for critical SG Alert notifications

This guarantees a unified public‑warning experience during emergencies.

⚡ Stronger RF Safety & EMC Requirements

TS CMT 2026 updates RF exposure compliance to newer test standards, improving measurement accuracy for SAR and power density. EMC requirements have also been clarified and expanded, ensuring devices remain resilient under real‑world interference from other wireless systems and electrical environments.

📴 2G Disabled by Default

To align with Singapore’s network evolution, all devices must ship with 2G connectivity switched off. Re‑activation is only allowed through deliberate user action.

🔒 Updated Safety Requirements

All equipment must meet IEC 62368‑1 safety standards, and lithium batteries must comply with international battery safety requirements. These measures ensure safer operation across consumer, industrial, and enterprise environments.