PLAR stands for Private Line Automatic Ringdown and is a feature commonly used in modern communication systems, including Cisco Unified Communications Manager (CUCM). PLAR allows users to establish a direct connection between two phones without requiring the user to dial a phone number or extension. Instead, the connection is established automatically when the user picks up the phone, making it ideal for applications such as emergency phones or direct connections to other critical services.
The way PLAR works is by associating a specific line or phone with another line or phone, such that when a user picks up the phone, the call is automatically connected to the other phone. This means that no dialing or additional action is required by the user. PLAR can be set up on a per-line or per-phone basis, allowing for greater flexibility in configuring the system.
PLAR is often used in environments such as elevators, emergency phones, or direct connections to critical services, where it is important to establish a connection quickly and reliably without requiring the user to take additional steps. PLAR can also be useful in environments where users may not be familiar with the communication system, such as public spaces or high-traffic areas.
In summary, PLAR is a valuable feature of modern communication systems that allows for the establishment of direct connections between phones or lines without requiring the user to dial a phone number or extension. PLAR is particularly useful in emergency situations or environments where it is important to establish a connection quickly and reliably, and where users may not be familiar with the communication system.