VoIP Power

One of the differences between using VoIP for phone calls and using analogue wired phone lines is that that a VoIP service is dependant on a number of other things working, take for example the diagram:

as you can see there is quite a lot move involved in making a call over VoIP compared to over the traditional analogue phone

• VoIP needs local power for the phone
• VoIP needs local power for the router and FTTP ONT
• VoIP is reliant on the internet connection working
• Analogue phone doesn't require power
• Analogue phone connects directly via a cable all the way through to the local BT exchange

Considerations

As you can see there is a lot more to go wrong. The main things to consider when using VoIP is:

• What happens if I lose power
• What happens if my internet connection has a fault