https://electricalinstallationservices.co.uk/wp-content/uploads/2022/09/What-Is-Voip.jpeg6671000Gary Crillyhttps://electricalinstallationservices.co.uk/wp-content/uploads/2017/12/EIS-Logo-340-purple.pngGary Crilly2022-09-23 12:58:072022-12-15 12:09:36What cable does a VoIP phone use?