Misc. Dialplan Tools redirect
From FreeSWITCH Wiki
Can redirect a channel to another endpoint, you must take care to not redirect incompatible channels, as that wont have the desired effect. Ie if you redirect to a SIP url it should be a SIP channel. By providing a single SIP URI FreeSWITCH will issue a 302 "Moved Temporarily":
<action application="redirect" data="sip:firstname.lastname@example.org "/>
By providing multiple SIP URIs separated by a comma FreeSWITCH will send a 300 "Multiple Choices" (as of commit e15abcf9aaf6742765debb7ccb101965f5eae51b):
<action application="redirect" data="sip:email@example.com,sip:firstname.lastname@example.org"/>
The 300 sent by FreeSWITCH will have multiple Contact: headers with each value.
redirect can only be used on new incoming calls that haven't been answered (Answer app). If the call has been answered, use the Deflect application instead.