What is SIP Trunking?
SIP (Session Initiation Protocol) Trunking is a method of connecting your existing phone system (PBX) to the telephone network over the internet, replacing traditional ISDN lines. It allows you to keep your current phone hardware while transitioning to digital connectivity.
Why Choose SIP Trunking?
The smart way to transition if you have an existing phone system
Keep Your PBX
Continue using your existing phone system hardware and investment.
Simple Connection
We connect your PBX to our digital network, replacing ISDN lines.
Business Continuity
Built-in failover and redundancy to keep your phones working.
Cost Savings
Typically lower call costs than traditional ISDN services.
Key Benefits
- Protect your existing PBX investment
- No need to retrain staff on new systems
- Keep your current phone numbers
- Scale up or down channels as needed
- Lower per-channel costs than ISDN
- Future-proof connection to digital networks
How SIP Trunking Works
A straightforward transition from ISDN
Compatibility Check
We verify your PBX supports SIP and assess your broadband requirements.
Port Your Numbers
We transfer your existing phone numbers to SIP trunks seamlessly.
Configure Connection
We set up the SIP trunk connection to your PBX with the required channels.
Go Live
Your calls route over SIP – often with improved quality and lower costs.

