Hello I have two multi-domains freeswitch servers 1 and 2 and i want to interconnect them for internal calls I read https://wiki.freeswitch.org/wiki/Connect_Two_FreeSWITCH_Boxes but it did not fully fit to my need because I want to call from freeswitch1 a specific extension of freeswitch2 on a specific domain ( and not just default ). In short i want to tell to freeswitch2: Connect me with extension 1000@domain-name and not just connect me with extension 1000 My guess is send custom sip headers from freeswitch1 and parse X-domainname on freeswitch2 dialplan <action application="set" data="sip_h_X-domainname=somedomain"/> <action application="bridge" data="sofia/internal/${destination_number}@freeswitch2.company.com "/> This will probably work, but is there a clean way to do it without using non standard headers ? Best Regards