Oops - pre_answer does exist, but it doesn't seem to put ringing on the line.
Will investigate more...

On 17/08/2015 21:30, Steven Ayre wrote:
<action application="set" data="ringback=${uk-ring}"/>
<action application="preanswer"/>
then bridge as normal with {ignore_early_media=true} at the start of the dialstring

${uk-ring} is defined in vars.xml of the vanilla example config

See https://wiki.freeswitch.org/wiki/Custom_Ring_Back_Tones#Ringback


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