Services - VoIP - Origination

Call origination is the process of delivering calls from the PSTN to the clients IP based telephony equipment. In this case the call flow is initiated within the conventional PSTN network and delivered, via a gateway, over an IP circuit to the client’s VoIP equipment. In order for the PSTN user to find the VoIP user then the VoIP end-point must have a conventional telephone number.

Syntec are able to supply a full range of geographic and non-geographic numbers for the UK. Calls made from the PSTN to these numbers can be delivered anywhere in the world where the Internet (or an appropriate private circuit) is available. This offers the owner of a VoIP PBX or phone the ability to receive calls from any UK location at local telephone rates.

VoIP Trunking over Private Circuits - Many customers are replacing, or more commonly partially replacing, their ISDN30 PRI trunks with IP based trunking. The costs saving can be considerable in terms of rental and call charges. VoIP trunking can be delivered over a variety of private circuits dependent on capacity and geographical location. Where low-cost IP circuits may suffer from occasional degradation of quality and availability then PSTN fail-over devices can be employed which offer immediate, in-call switching, to conventional PSTN back-up.

VoIP enabled PBX equipment is becoming more popular and in many cases these can be connected directly to the IP trunk. Where the customer has a conventional PBX then Syntec can offer appropriate gateway equipment.


Syntec has a wide experience in supplying this infrastructure and would be delighted to discuss your needs in more detail.