Certified SIP Trunk Providers Thailand

DIDWW

DIDWW, a licensed telecom operator with over 20 years of industry experience, specializes in fully compliant virtual phone numbers, voice, and messaging services across 90+ countries. The company continues to expand its global coverage and currently holds telecom licenses in 30 countries, along with its own numbering resources in 18 of those regions.
DIDWW empowers businesses with flexible, customizable communication solutions, offering a range of products that can be combined to create your perfect solution. For added convenience, all services can be easily configured and managed through the DIDWW online User Panel, ensuring full control over your communication infrastructure.

True

TrueBusiness is the enterprise arm of True Corporation, Thailand’s leading provider of enterprise voice solutions, offering advanced communication services to empowering your business growth. We provide reliable Internet SIP trunk services with high-quality voice, ensuring smooth communication over the internet. Our services are compatible with Yeastar’s Cloud PBX, allowing for efficient call management with enhanced flexibility and scalability. Trusted by both SMEs and large enterprises, TrueBusiness integrates modern voice and internet technologies to keep your business connected, secure, and competitive. Experience the future of business communication with TrueBusiness, your partner in innovation and growth.

Telxi Limited

Telxi is a next-generation telecommunications provider offering enterprise-grade VoIP, SIP trunking, and cloud-based communication services. Our scalable, pay‑as‑you‑go platform includes local and international voice termination, DIDs, messaging, fax, and emergency calling—delivered over a secure, fraud-protected infrastructure.
Built for CPaaS platforms, contact centers, and seamlessly compatible with top PBX systems, Telxi ensures easy integration, instant SIP trunk provisioning, unlimited channels, and global coverage. Features include TLS/SRTP encryption, real-time analytics, call recording, and full KYC/AML compliance.
With carrier-grade reliability, flexible API integrations, and 24/7 expert support, Telxi empowers businesses to connect, scale, and operate cost-effectively—anywhere in the world.