Phonebook (Only supports Yealink currently)

To be honest, I don't much care on it, but if it matters to someone - will do!
Error log are empity, access log contain:
[06/Dec/2018:06:59:52 +0100] "GET /app/phonebook/directory.php?gid=ac2d7ec1-a25e-44c6-8255-cb58c2894cd7 HTTP/1.1" 302 5 "-" "Yealink SIP-T58 58.83.0.5"
[06/Dec/2018:06:59:52 +0100] "GET /login.php?path=%2Fapp%2Fphonebook%2Fdirectory.php%3Fgid%3Dac2d7ec1-a25e-44c6-8255-cb58c2894cd7 HTTP/1.1" 200 8563 "-" "Yealink SIP-T58 58.83.0.5"
[06/Dec/2018:08:49:36 +0100] "GET /core/menu/menu.php HTTP/1.1" 302 5 "https://192.168.1.172/app/phonebook/phonebook.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0"