You can set a system-wide expiration interval for parked calls. If no one answers the call before the interval expires, the system redirects the call.

The system redirects a parked call to the attendant if the Deluxe Paging and Call Park Timeout to Originator field on the Feature-Related System Parameters screens is set to n. The system redirects a parked call to the user who parked the call if the Deluxe Paging and Call Park Timeout to Originator field on the Feature-Related System Parameters screens is set to y.

If you do not administer an attendant, a night service extension, or the Night Service-Trunk Answer feature, the system ignores the expiration interval, and the call remains parked.

If two parties are connected on a parked call, a third party can create a three-way conference, if the third party answers the call before the interval expires.

The attendant console group can have common shared extensions that the attendant console group uses exclusively for the Call Park feature. The system does not assign the common shared extensions to a telephone. The system stores the common shared extensions in the system translations, and parks calls at the extensions.

The common shared extensions are particularly useful when an attendant pages a user at the request of another user. The attendant parks the calling user on a common shared extension, and announces the extension. The status lamp that is associated with the extension indicates call parked or no call parked, instead of an active or idle status.

If a user parks a call and does not disconnect after hearing the confirmation tone, the user stays connected to other parties on the call. To automatically disconnect the call, set the Drop Parking User From The Call After Timeout field on the Feature-related system parameters screen to y. The system then drops the parked call after the default time limit of 5 seconds if the user does not disconnect the call. You cannot change the default time limit.

In Communication Manager Release 6.0, you can administer the call unpark button on the SAT screen for SIP telephones. Starting with SIP telephone firmware 2.6, the call park button provides a toggle functionality to park and unpark the same call, from the same telephone. For SIP telephones that do not support the toggle functionality, you can administer the call unpark button. You must administer the call unpark button whenever you need to unpark a call from a different SIP telephone than the one used to park the call.

For information on how to assign a call unpark button to a SIP telephone, see Assigning a call unpark button to a SIP telephone.

The Call Park feature in Communication Manager is different from the features provided with Call Park and Page Snap-in. For information about Call Park and Page Snap-in, see Call Park and Page Snap-in Reference.