Installed Linphone 3.5.2 on Debian 'Wheezy' (7.2) 64-bit today. So pretty new to Linphone, but not to SIP !
My intention was to use it as a SIP client with my Asterisk / FreeSwitch B2BUA.
However, the 'Account Assistant' wizard does not allow me to enter configuration of my existing SIP account. Even after entering the Username, Password, Domain fields, the 'Apply' button remains grayed-out. Is this a known issue ?