http://usecallmanager.nz/sepmac-cnf-xml.html
http://usecallmanager.nz/line-keys-xml.html
http://usecallmanager.nz/user-locale.html
https://www.voip-info.org/wiki/view/Asterisk+phone+cisco+79x1+xml+configuration+files+for+SIP
https://www.voip-info.org/wiki/view/Asterisk+phone+cisco+7970+SIP