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SIP-T21
Yealink SIP-T21 User Manual
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User Guide for the SIP
-
T21P/SI
P
-
T21 IP Phone
vi
Anonymous Call
on page
93
Documentations of the SIP
-
T
21
IP
phone have also been added.
Major updates have occurred to the following sections:
LED Instructions
on page
4
Anonymous Call
on page
93
T
roubleshooting
on page
117
6
8
Table of Contents
About this Guide
6
Table of Contents
8
Table of Contents
10
Overview
12
Hardware Component Instructions
12
Icon Instructions
12
LED Instructions
12
User Interfaces
12
Documentations
12
Registration
17
Language
17
Time & Date
17
Key as Send
17
Keypad Lock
17
Call Recording
18
Power over Ethernet
23
Language
29
Time/Date
30
Administrator Password
31
Keypad Lock
32
Key as Send
32
Directory
38
Adding Contacts Manually
42
Static Forwarding
87
Dynamic Forwarding
93
Directed Call Pickup
99
Group Call Pickup
102
Hot Desking
106
Intercom
106
Multicast Paging
106
Music on Hold
106
Automatic Call Distribution (ACD)
106
Messages
106
Voice Mail
124
Troubleshooting
128
Regulatory Notices
138
Service Agreements
138
Appendix A-Time Zones
140
Index
142
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Yealink SIP-T21 Specifications
General
Brand
Yealink
Model
SIP-T21
Category
IP Phone
Language
English
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