@whut the header button with phone is opening it.
but first you need to have a directory user
also you need sofia profile configured for wss or loaded verto module with proper config
if all is ready open user settings by this button
here choose Web users and proper user to set web phone for
it will show seetings you need to set up:
choose directory user
choose phone lib to use (SIP.js for sofia sip and Verto for verto )
and set proper wss url
add stun server (optional)
so finally press the phone button and see the dialer interface - if SIP.js used there will be red/green button for register or unregister
IF YOU ARE USING SELF-SIGHNED CERTS:
open wss link in browser replacing wss to https and allow certs