Which users have access to the Hotkey Builder?

Currently, only Office Managers, however, an Office Manager can configure phones for Basic Users. We recommend using the Favourites feature under the Contacts tab (starring contacts), which will pull the Favourites list that a Basic User sets. 

Can I use the Line Appearance Feature?

Line appearance is tricky. The way it works is it allows you to add another extension to your phone, enabling you to make outbound calls and receive inbound calls. Here's why it isn't recommended at the moment: your phone will only receive calls to an extension if your phone was the last device to register. Since devices are constantly registering, it's likely that not all calls will be sent to the same device. 

Calls cannot ring two devices simultaneously through the Line Appearance feature, so it is not recommended to use this feature. We recommend setting up a call queue, which has much more functionality. Our Support Team can help you. 

What should I use for speed dial? How can I see if my colleagues are on the phone?

The Busy-Lamp Field (BLF), is the feature to use. BFL will display when other extensions are receiving calls (flashing green), on a call (solid red), and available for a call (light is off).