Yealink SIP-T4X Administration Manual page 463

Administrator's Guide for SIP-T4X IP Phones
action_url.busy_to_idle =
action_url.idle_to_busy =
action_url.ip_change =
action_url.forward_incoming_call =
action_url.reject_incoming_call =
action_url.answer_new_incoming_call =
action_url.transfer_finished =
action_url.transfer_failed =
#Access URL of Resource Files
dialplan_dialnow.url =
dialplan_replace_rule.url =
local_contact.data.url =
remote_phonebook.data.1.url =
directory_setting.url =
super_search.url =
wallpaper_upload.url =
448