Being long established in the business, and involved in others, I find the Bluetooth invaluable and there is no technological knowledge required
All you need is a Bluetooth enabled
mobile, which they virtually all, are, Bluetooth earpiece, which is enabled through the menu.
Call divert, which costs pennies, from BT
Your diverted call, goes straight to the Bluetooth, without having to do anything and you just talk, normally.
Most importantly, the client is talking directly to YOU
ROBBIE