Get your 0800 & 0808 Free Phone numbers in the UK

A DID (Direct Inward Dialing) Number or a Virtual Number (also called a DDI in Europe) is a local telephone number in a selected country or city. The calls made to these numbers are then forwarded by DCS to your Hosted PBX, SIP account, SIP Trunk or to a PSTN (Plain Old Telephone System) device such as a regular or mobile telephone anywhere in the world.

A DID (Direct Inward Dialing) Number or a Virtual Number (also called a DDI in Europe) is a local telephone number in a selected country or city. The calls made to these numbers are then forwarded by DCS to your Hosted PBX, SIP account, SIP Trunk or to a PSTN (Plain Old Telephone System) device such as a regular or mobile telephone anywhere in the world.

To enjoy unlimitted free incoming calls you would require Internet. VoIP (Voice over IP) requires data connection between your premises and our servers. In most cases it would be public internet. However you only need a tiny amount of bandwidth – connection speed in order to use VoIP. Each channel requires 80Kbps (0.08 Mbps), or using compressed codec even smaller – 0.03Mbps. Quality of VoIP will highly depend on the reliability of your internet connection. It does not have to be very fast, but it must be reliable and stable.

Alternatively we can divert the DID/DDI number to any PSTN or Mobile number, in this case you would not require internet, a divert fee would be applied per minute for incoming calls to the final destination.

We have multiple solutions that can make sure you can continue to receive calls even when your internet goes down. You can have calls diverted to your mobile phone if you are offline, this way you can continue to receive calls without any internet.

Simply speaking – it is same as traditional phone lines. We use G711 voice codec as standard. Connection will be crystal clear and same as normal PSTN services. Also, unlike many other services, all our equipment is hosted locally, meaning that there will be no delays in voice transmission.

Our systems are optimized for reliability, not price. We guarantee 99.9% SLA backed uptime on all our systems. All parts of the system are fully redundant, meaning that there is no single point of failure. This is not just words.

Your older handset can be used with VoIP via special device called ATA (Analog telephone adapter). Adapter will convert analog signals sent by your phone into IP traffic that can be transmitted over the internet. However, we recommend using special phones like Sangoma or Fanvil for the full experience of VoIP as it gives you an additional range of great features and greatly improves the quality of calls.