ISDN and PSTN are outdated legacy technologies that have some serious drawbacks and rising maintenance costs also the large network providers are proposing to phase out this infrastructure by 2025. The infrastructure behind ISDN is essentially the same design that the early telephone networks of the late 1800’s used. The cost of maintaining such an old infrastructure is continuing to spiral and with much better alternatives available, it doesn’t make sense to continue with this technology.IP Voice Technology
With internet connections becoming more reliable with every year, it is the ideal opportunity for you to transition away from old technology and embrace what over half of UK businesses have done already, making the switch from ISDN / PSTN to an IP system. IP based telephony which unlike traditional solutions, does not run on copper lines, only requires an active internet connection to use. There are two options using IP; hosted VoIP and SIP.Hosted VOIP Technology
Hosted VoIP is another term for Hosted PBX. “Hosted” means to say that the hardware and PBX is hosted at an off-site location from where the VoIP telephone service is being used. An office can have VoIP telephone service that powers their phones in the office, but their PBX could be hosted at their VoIP providers data centre, thus the term: hosted VoIP.SIP Technology
The Session Initiation Protocol (SIP) is a signalling protocol that is used by technology products for creating session-oriented connections between two or more endpoints in an IP network. These endpoints could be IP telephones, instant messaging clients, or a collaborative multimedia conference application.Benefits
There are many benefits to using Hosted VoIP rather than a traditional phone system, or an on-premise VoIP system. The main benefit is cost- a Hosted VoIP system costs much less to set-up than an on-premise PBX. In many cases, there are minimal fees for a hosted VoIP system. Hosted VoIP phone systems fall under operational expenditure rather than capital expenditure, which also make hosted VoIP systems attractive to businesses.