Hello John,

I just checked the c file and it appears my comment on the Jira case is still relevant: the variable is only available on a 180-Ringing provisional response (not on a 183).
The patch is present in "case SWITCH_MESSAGE_INDICATE_RINGING", to be working for your needs it has to be added in "case SWITCH_MESSAGE_INDICATE_PROGRESS" a little bit below in the code too.

Regards
Florent



2016-01-07 11:35 GMT+01:00 John Nash <john.nash778@gmail.com>:
I am trying to get sip_to_tag session variable in a lua script which is executed on media (183) I can see from tag call id but not to tag

I saw this was fixed in https://freeswitch.org/jira/browse/FS-7137 but I am using higher version

FreeSWITCH Version 1.4.26+git~20151124T001158Z~45534616c6~64bit (git 4553461 2015-11-24 00:11:58Z 64bit)

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