SIP Trunking built for Thai businesses

Thailand

Cloud PBX, SIP trunks, DID numbers and contact-centre tools built for Thai businesses who feel every baht on the phone bill.

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4.8

Trusted by

0+ users

One VoIP provider, every service you need

CallnClear bundles SIP trunking, hosted telephony, and numbers into a single, certified platform.

Cloud PBX

Cloud PBX that cuts telecom costs by up to 80% without cutting features — remotely managed, resilient, and priced for SMEs and contact centres alike.

SIP Trunks

SIP trunks certified with 3CX, Asterisk, Avaya, Cisco, FreePBX and Grandstream — reliable enough for Thailand's busiest contact-centre floors.

DID Numbers

Local numbers across Thailand and abroad instead of one long-distance line, all billed under one NBTC-compliant account.

IP Phones

IP phones from Cisco, Htek, Poly, Snom and Yealink, from single-line desks to full contact-centre rollouts.

FAX to Email

Faxes arrive as PDFs in your inbox — no tray to check, no toner to replace, same Thai fax number your partners already have.

Let the
Numbers
Speak

0K+

Customers

0M+

Processed Mins / Month

0K+

DID numbers

Certified & compatible with

FAQ

Have questions?

The essentials on SIP trunking, and why businesses in Thailand pick CallnClear to run it.

Still need help?

Talk to our support team

SIP (Session Initiation Protocol) carries a phone call over the same internet connection as everything else in your office — no separate line, no separate bill.

Ready to switch to CallnClear?

Tell us about your current setup and call volume — we'll follow up with a quote or a demo, whichever fits.