Yealink EXP38 IP 38 Button Module

IP (Internet Protocol)
A protocol that specifies the way data is broken into packets and the way those packets are addressed for transmission. Unlike traditional telephone lines which create a straight path from caller to recipient; IP uses the best available path at any given moment to move data packets between point A & point B. The beauty of IP is that the sending end and receiving end communicate success in sending and receiving to insure all data packets are delivered. A really great concept of IP is that of self healing. If a route is broken and the data packets cannot be delivered an alternate route is automatically selected.

Park
Similar to hold except the call is held by the Server or KSU and to retrieve the call you need to know the Park Number or have Park buttons on the phone. Typically used in a larger PBX system when a receptionist does not know where to find an individual, in this case the receptionist would Park and then Page the individual.