Arguably, this is the feature that makes a business phone system powerful. Ring-U automatically configures “soft” and physical key functionality on all Grandstream phones that support it (GRP2135, GRP2170, GXP2614, GXP2616) with a layout similar to the one in the picture.

Will park a call in a parking slot, so that it can be picked up by other phones (or the same one). While on a call, press Park. you will notice Slot 1 or Slot 2 turns red.. That call is parked in that slot. It can be answered from any other phone by pressing the red button. Any phone without keys can park a call by transfering it to extension 600, the system will read the slot number it is parked in.

Ring-U typically configures 2 slots to display, there are 9 available. Each slot is essentially a “line” that a call can be placed on hold for some other phone to pick up. Place a call into the slot by parking it (see above), pick up that call by pressing the slot button that is red/occupied. A phone without keys can pick up a call by dialing the slot number. Example: The receptionist yells “Steve is on 602”, using a phone without keys, simply dial 602 to pick up the call.

Some phones,