Call parking is a feature of Asterisk that allows a user to put a call on hold at one extension and continue the conversation from any other extensions.
The number used to park a call on Sipdex IP PBX is 700, and the parking extensions are configured from 701 to 720. While in a conversation, press *2 or transfer button on the phone to initiate a transfer, then dial 700.Asterisk will announce the parking extension, most probably 701 or 702. Now hang up – the caller will be left on hold at the announced extension. Walk up to a different phone, dial the extension number announced- the conversation can be continued. If a caller has been parked for a longer time than the specified time limit then Asterisk will again ring the originally dialed extension.