Fanvil C58 User Manual page 51

Click to talk
Enable BLF List
BLF List Number
SIP Global Settings
Strict Branch
Enable Group
Registration Failure
Retry Time
Set click to Talk (need practical software support).
Enable BLF List by selecting it, BLF list is a
function which can monitor the group status, it is
not one to one monitoring, but the information
feedback from the server to decide which BLF list
will monitor.
Specify the BLF List Number.
Enable the Strict Branch, the value of the branch
must be in the beginning of z9hG4k in via field of
the invite sip message received, or the phone won't
response to the invite sip message.
Notice: the deployment will become effective in all
sip lines.
Enable Group by selecting it, then the phone enable
the sip group backup function.
Notice: the deployment will become effective in all
sip lines.
Specify the registration failure retry time, if the
phone register failed, the phone will register again
after registration failure retry time.
Notice: the deployment will become effective in all
sip lines.