Tested and Verified
SIP Trunk Compatibility
Seamless Connection With Leading PBX Platforms
Our SIP trunk service has been rigorously tested and is fully compatible with leading PBX systems. No workarounds, no guesswork.
No workarounds. Proven interoperability with all supported PBX systems.
Fully tested & Proven SIP Trunk Compatibility
Seamless Connection With Leading PBX Platforms
Our SIP trunk service has been tested and proven compatible with leading PBX platforms.
No workarounds. No guesswork. Proven interoperability.
Enterprise-Grade
Features Included
Automatic Call Diversion
Calls are instantly rerouted if your PBX becomes unreachable - and restored automatically once back online.
Instant Divert for Emergencies
Redirect all calls immediately to a new destination with a sigle rule.
TLS-Secured SIP Trunks
Fully encrypted signalling for secure, enterprise-grade calling.
SIP PAYG
SIP SOLO
Free UK number
call diversion
free inbound calls
VoIPVoice SIP Trunking
A reliable SIP Trunk that your business can use to connect your on-premises or cloud-based PBX phone system to the traditional PSTN network.
Our SIP Trunk service is not only reliable, but also cost-effective, scalable, secure and resilient. It comes with Pay as You Go (PAYG) and bundled plans for termination of landline and mobile services, by small and large businesses worldwide.
What is SIP (Session Initiation Protocol) Trunking?
Session Initiation Protocol (SIP) Trunking is a service that uses the ‘SIP’ protocol to provision Voice over IP (VoIP) and multimedia connectivity between an on-premises PBX phone system and the traditional PSTN telephone network. Basically, SIP Trunking uses the SIP protocol to enable multimedia communications between endpoints over an Internet Protocol or IP network.
In simple terms, A SIP trunk is a virtual phone line that connects your business phone system to the traditional telephone or mobile networks. It may consist of 10, 20 or more SIP lines that are often called channels.
Our monthly subscriptions are billed per second, per channel and per month. A channel can support 1 incoming call or 1 outgoing call at a time. To support, for example, 3 simultaneous calls, 3 channels would be required.