VoIP or 'Voice Over Internet Protocol' is a method of making calls over the internet.
SIP or 'Session Initiated Protocol', without getting too technical, is actually an advancement in VoIP technology. Think of SIP as a language of communication across IP networks and the internet. Its main uses are for connecting IP telephones to IP and hosted telephone systems.
The primary benefit of using this technology is to make cost savings on calls and, more importantly, giving you control of your business telephone numbers, enabling you to move office without loss of numbers due to BT Exchange restrictions. For example, SIP allows you to move the office from London to, for example, Cardiff but still keep your coveted London numbers and more importantly to present these numbers to any customers you call.
Technologically, VoIP and SIP are, at present, still in their relative infancy and ultimately controlled by the stability and resilience of the supporting internet connection and the network provider. However, the area is developing very fast and we are currently installing VoIP and SIP trunks to many customers, some working alongside their existing lines in order to 'future proof' their communications platform. We expect this area to grow very fast over the next few years. Watch this space!