Yealink T26

FEATURE
Field name
explanation
Do Not
Disturb
Select DND, the phone will reject any incoming call, the callers
will be reminded by busy, but any outgoing call from the phone
will work well.
Ban
Outgoing
If you select Ban Outgoing to enable it, and you cannot dial out
any number.
Enable Call
Transfer
Enable Call Transfer by selecting it.
Semi-Attend
ed Transfer
Enable Semi-Attended Transfer by selecting it
Enable Auto
Redial
Enable Auto Redial by selecting it, then the phone reminds
whether redial, when the callee is busy or rejects
Auto Redial
interval
Specify the Auto Redial interval,