SIP Trunking
Replace your phone lines,
not your phone system.
Peakbit SIP trunks connect your PBX to the global PSTN with crystal-clear HD audio, instant provisioning, and zero channel limits.
Why Peakbit SIP Trunking
Unlimited Channels
No per-channel fees. Handle as many concurrent calls as you need — scale on demand with no waiting.
Instant Provisioning
New trunks active in minutes, not days. Self-service dashboard with full API access for automation.
SRTP & TLS Encryption
All signaling and media encrypted end-to-end. TLS for SIP, SRTP for audio — enterprise security by default.
Global Number Porting
Keep your existing numbers. We port from any carrier in 100+ countries with zero downtime guarantees.
PBX Compatibility
Works with every major PBX — 3CX, Asterisk, FreeSWITCH, Grandstream, Yealink, and more. Certified interoperability.
Fraud Detection
AI-powered real-time monitoring blocks toll fraud before it happens. Set spend limits and receive instant alerts.
Use Cases
Handle thousands of concurrent calls with dynamic scaling. Peakbit trunking pairs with your ACD and IVR to deliver low-latency, high-definition voice at every touchpoint.
Consolidate voice across offices worldwide onto a single SIP trunk. Centralized management, local presence via DID numbers, and no more managing fragmented carrier contracts.
White-label our SIP infrastructure under your brand. Full API control, custom rate decks, and SLA-backed quality — let us handle the PSTN so you can focus on your product.
Frequently Asked Questions
Just an IP-PBX or softphone. Peakbit SIP trunks are 100% cloud — no PRI cards, no gateway hardware. Connect over your existing internet connection.
Most US/EU ports complete in 5–10 business days. Emergency failover keeps your numbers live during the entire process.
Absolutely. Every plan includes a risk-free 14-day trial with full feature access. No credit card required.