Reliable SIP Trunk Connections
for Enterpises
Connect your existing PBX or UCaaS platform to the PSTN with our scalable, secure, and cost-effective SIP Trunking service. Instant provisioning globally.
Enterprise-Grade Voice Connectivity
Everything you need to power your global communications infrastructure.
Global Coverage
Access local, toll-free, and mobile numbers in over 50 countries with superior call quality.
High Availability
Redundant infrastructure with automatic failover routing ensures your lines never go down.
Elastic Scaling
Add or remove capacity instantly. Handle unexpected traffic spikes without manual intervention.
Advanced Security
TLS/SRTP encryption, IP authentication, and proactive fraud detection protect your communications.
BYOC Support
Bring Your Own Carrier. Easily connect Firetell SIP Trunks to MS Teams, Zoom, or your custom PBX.
Real-time Billing
Monitor usage and expenses in real-time with granular per-second billing and detailed CDRs.
Connect in Minutes, Not Weeks
Create Connection
Set up a new SIP Trunk in the dashboard and assign phone numbers.
Configure Auth
Secure your trunk using IP whitelisting or username/password credentials.
Configure PBX
Point your PBX (Asterisk, 3CX, FreeSWITCH, etc.) to our edge nodes and start making calls.
Why Switch to Firetell SIP Trunking?
Replace outdated legacy telecom infrastructure with a modern API-first carrier.
Who uses our SIP Trunks?
Enterprise On-Prem PBX
Connect your expensive PBX hardware to the cloud for cheaper rates and global reach.
Call Centers
Handle massive volumes of concurrent calls with high CPS (calls per second) allowed.
UCaaS & Platforms
Provide underlying voice connectivity for your own SaaS voice application and users.
Global Consolidation
Centralize communications from local offices worldwide into a single global telecom provider.