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Yealink SIP-T21 E2 Administrator's Guide

Yealink SIP-T21 E2
1126 pages
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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
1100
Setting Up Your System 42
Shared Call Appearance (SCA) 653
Short Message Service (SMS) 672
SIP xiii
SIP Components xiii
SIP Header 1057
SIP IP Phone Models 1
SIP Request 1056
SIP Responses 1058
SIP Send Line 563
SIP Send MAC 561
SIP Session Description Protocol Usage 1061
SIP Session Timer 433
Softkey Layout 287
Specifying the Language to Use 275
Speed Dial 371
Static DNS 47
STUN 102
Summary Table Format viii
Supported Provisioning Protocols 146
Suppress DTMF Display 897
Smart Noise Block 889
T
Table of Contents xviii
Time and Date 248
Transfer on Conference Hang Up 476
Transfer Mode via Dsskey 477
Transfer via DTMF 898
Transparency 189
Transport Layer Security (TLS) 938
Troubleshooting 963
Troubleshooting Methods 963
Troubleshooting Solutions 989
TR-069 Device Management 777
U
Understanding VoIP Principle and SIP
Components xii
Unregister When Reboot 569
Upgrading Firmware 148
USB Recording 575
Use Outbound Proxy in Dialog 431
User Agent Client (UAC) 1094
User Agent Server (UAS) 587
User and Administrator Password 923
V
Verifying Startup 42
Viewing Log Files 963
VLAN 74
Voice Activity Detection (VAD) 881
Voice Mail Tone 842
Voice Quality Monitoring (VQM) 890
VoIP Principle xii
VPN 97
VQ-RTCPXR 905
W
Wallpaper 182
Web Server Type 66
Web User Interface 135
What IP Phones Need to Meet 21
Why Using a Provisioning Server? 146
Wi-Fi 66
X
XML Browser 783
Y
Yealink IP Phones in a Network 21

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Yealink SIP-T21 E2 Specifications

General IconGeneral
BrandYealink
ModelSIP-T21 E2
CategoryIP Phone
LanguageEnglish

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