exten- Parking space extension to retrieve a parked call. If not provided then the first available parked call in the parking lot will be retrieved.
parking_lot_name- Specify from which parking lot to retrieve a parked call.
The parking lot used is selected in the following order:
1) parking_lot_name option2option
CHANNEL(parkinglot)function (Possibly preset by the channel driver.)
4) Default parking lot.
This documentation was imported from Asterisk Version SVN-branch-10-r370277r378689