‘Session Initiation Protocol’ – more commonly referred to as SIP – is one of the fastest growing technologies today with many businesses choosing to migrate away from traditional ISDN lines in favour of SIP trunks.
ISDN has been the telephony technology of choice for many years due to the reliability of its service. However, cost and a lack of flexibility are prompting firms to choose alternative connectivity options and SIP is emerging as a clear favourite.
The main reasons for this are that SIP trunks allow businesses to lower costs, increase resilience, improve flexibility and use multiple new and existing phone numbers anywhere in the UK. What’s more, SIP will work with much of the voice and data networking equipment that the majority of businesses already have in place.
Deploying SIP trunks can represent a giant leap towards simplifying your organisation’s communications and preparing for the latest real-time enhancements, but the biggest motivation for most businesses is without doubt, the immediate and substantial cost savings.
By removing costly ISDN lines and routing call traffic over a data network instead, you no longer have to pay for ISDN line rental which in turn can save up to 50%* on line rental expenditure. Moreover, SIP trunks enable free calls between multiple company sites. With SIP trunking, you get a service that is more robust and cost effective than ISDN and because SIP trunking is an IP-based telephony service, you also get number flexibility which in itself delivers a host of added benefits that can solve real business issues.
*Compared to BT’s standard ISDN30 rates