Connect your compatible PBX to Infinitel SIP trunking for business calls, flexible calling capacity and the numbers you need. Keep your platform and put specialist voice expertise behind it.
SIP trunking links your phone system to the public telephone network over an IP connection. Infinitel brings the trunk, numbers and support together.
Retain compatible PBX equipment and the call handling your team already uses. Infinitel supplies the SIP connection, business numbers and external voice routing; PBX features and maintenance remain with your phone-system service.
Choose channels for the calls you handle at the same time, with room to adjust as teams grow and busy periods change.
A SIP channel carries one simultaneous call. The number of calls in progress is the starting point for capacity; it is different from the number of extensions, staff or telephone numbers.
| Part of your SIP service | What it means for your business |
|---|---|
| Monthly channel capacity | One channel carries one external call at a time, incoming or outgoing. For example, eight channels can carry five incoming and three outgoing calls together. This illustrates capacity, not a recommended package or a limit of eight employees. |
| Calls and destinations | Call charges follow the destination and applicable tariff. For regular UK calling, ask us to compare metered usage with an inclusive allowance. The quote identifies covered prefixes, fair-use limits and rates for calls outside any allowance, including international or special numbers. |
| Business numbers | Choose new numbers or bring eligible UK and international numbers with a £0 Infinitel porting fee. Number rental and calling charges remain separate; availability and features vary by market. |
| Moving and supporting the service | SIP configuration, PBX interoperability, porting and testing. Your quotation separates recurring, usage and one-off charges and identifies the contract and support arrangements. |
Infinitel SIP trunks work with most IP PBX systems. Provision the trunk through our self-service portal, keep your familiar call handling and get specialist help when you need it. Your phone-system provider continues to support its features and handsets.
Plan overflow, an alternative destination or backup access around the calls that matter most. Infinitel checks what your PBX and connections can support, including suitable capacity, power and access-path diversity.
Our voice network has seven points of presence within data centres across five continents. Bring that network and our specialists’ expertise to your business calling.
Infinitel provisions and supports the trunk, numbers and voice routing on its service. Our specialists coordinate with your PBX maintainer when a configuration change spans both the phone system and the calling connection.
Add numbers, adjust calling capacity and get help with everyday service questions from the same team. Your agreement identifies included support, service hours and any chargeable changes.
Create the trunk in our self-service portal and connect it to your IP PBX. Our voice specialists are available to help with settings and the calls your business needs to handle.
Add new numbers or bring eligible UK and international numbers with no Infinitel porting fee. We coordinate the transfer and routing so customers keep a familiar way to reach you.
Start calling with the routing and caller ID your business needs. Test important incoming and outgoing journeys with your team, then manage everyday changes in the portal with specialist help available.
Infinitel SIP trunks work with most IP PBX systems. Provision your trunk through our self-service portal and connect it to your phone system, with our voice specialists available to help.
A channel carries one simultaneous call. Your busiest calling periods are a better guide than employee count alone; we’ll help you find a sensible starting capacity.
Yes. Bring eligible UK and international business numbers to Infinitel with a £0 porting fee from us. Our voice team coordinates the transfer and your new call routes. Portability, timing and any existing-provider charges depend on the number and provider.
Your service needs the correct emergency-calling address and location information. Requirements vary by country, and calls rely on working connectivity and power. Infinitel explains the arrangements for the countries in your quote.
Keep your phone system and get a calling service that can grow with you. Compare channel options, business numbers and calling costs with our SIP specialists, then start with straightforward self-service provisioning and support when you need it.
Call our team0333 048 0000Email ushello@infinitel.co