Products · Voice
SIP Trunks for modern phone systems
A cost-effective, flexible alternative to traditional phone lines. SIP Trunks connect your existing phone system to the world over your internet connection — crystal-clear voice, reduced line rental, and the ability to scale channels on demand.
Why SIP from Niche
Voice infrastructure that scales
Works with your PBX
Compatible with most on-premise and cloud PBX systems — keep your existing numbers or port them to us. Explore voice
Pay for what you use
No line rental, scalable from 2 to hundreds of concurrent calls, with local support and provisioning from Niche.
Built-in resilience
Redundancy and failover options for maximum uptime, advanced routing for load balancing and disaster recovery.
Key features
Quality, security and insight
Quality & reach
Crystal-clear call quality over enterprise-grade internet, with geographic number flexibility so you appear local no matter your location.
Security & control
Business-grade security and encryption, with advanced routing for load balancing or disaster recovery.
Insights & support
Call analytics and reporting available, plus 24/7 monitoring and support.
Where it fits
Perfect for
Existing phone systems
- On-premise PBX (Panasonic, NEC, Avaya, 3CX)
- A scalable alternative to ISDN or analogue lines
- Multi-site businesses needing unified comms
Modernising voice
- Organisations transitioning to VoIP
- Businesses preparing for cloud PBX migration
- Anyone future-proofing ahead of copper shutdown
Future-proof your voice
With copper services winding down, SIP Trunking is the smart, modern move. We make migration smooth, with minimal disruption — from number porting to go-live.