Yealink SIP-T21 E2 Administrator's Guide

Configuring Basic Features
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Specify the return code and the
reason of the SIP response message
when DND is activated.
Parameter:
features.dnd_refuse_code
Configure large DND icon feature.
Parameter:
features.dnd.large_icon.enable
Assign a DND key.
Parameters:
linekey.X.type/
programablekey.X.type/
expansion_module.X.key.Y.type
linekey.X.label/
programablekey.X.label/
expansion_module.X.key.Y.label
linekey.X.shortlabel
Web User Interface
Configure DND.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-forward&q=load
Specify the authorized numbers when
DND is activated.
Specify the return code and the
reason of the SIP response message
when DND is activated.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-general&q=load
Assign a DND key.
Navigate to:
http://<phoneIPAddress>/servlet?p=
dsskey&q=load&model=0
Phone User Interface
Configure DND.
Assign a DND key.

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English