SIP Trunk

C4L's SIP Trunk service allows you to connect your existing PBX to our network via any broadband connection, thereby enabling you to enjoy our resilient network and our call rates.

At C4L, we build all our telecoms services with superb voice quality in mind, which is perhaps why our network has been independently recognised for its voice quality by ITSPA.

Our SIP Trunk will provide security in the form of call barring of certain destinations (e.g. countries) and can be locked down to a specific IP address.

For a full list of all SIP Trunk features, please download our data sheet or use the quick quote form above.

* Concurrent calls will be limited by customer's bandwidth availability. For improved bandwidth connectivity, please visit our leased lines page

Rate Table:

Questions? Let us help

To speak to one of our consultants about what our Telecoms Services can do for you, or for any queries, please fill out our Enquiry Form, Call 08000 470 481, Request Callback, or Request a Brochure.