W/O: Initiate a session refresh via an UPDATE or re-INVITE on an established media session
This function will cause the PJSIP stack to immediately refresh the media session for the channel. This will be done using either a re-INVITE (default) or an UPDATE request.
This is most useful when combined with the PJSIP_MEDIA_OFFER dialplan function, as it allows the formats in use on a channel to be re-negotiated after call setup.
update_type- The type of update to send. Default is
invite- Send the session refresh as a re-INVITE.
update- Send the session refresh as an UPDATE.
This documentation was imported from Asterisk Version 18