Hello In older versions of Elastix there was a section that we could input asterisk commands or edit filesystems manually, For example we have some Simton's phone (old Yealink IP-Phones) that they have useragent and we must manually edit the sip.conf file to edit the useragent. Now in 3cx phone system (elastix5) we couldn't find any options to manually edit sip.conf file. And if we don't put the useragent command in sip.conf, the IP-Phones won't recieve any calls !!! So, is there any option in Elastix5 to edit sip.conf ?