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Yealink SIP-T2 User Manual
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125
127
Table of Contents
Before You Begin
2
Related Documentations
2
Recommended References
2
Summary of Changes
2
Changes for Release V85, Guide Version V85.2
3
Table of Contents
5
Getting Started
24
Requirements
24
Yealink IP Phones in a Network
24
Initialization Process Overview
25
Loading the ROM File
25
Configuring the VLAN
26
Querying the DHCP (Dynamic Host Configuration Protocol) Server
26
Contacting the Provisioning Server
26
Updating Firmware
26
Downloading the Resource Files
26
Verifying Startup
26
Network Configurations
27
Ipv4 and Ipv6 Wired Network Settings
27
Wired Network IP Addressing Mode Configuration
27
Ipv4 Wired Network Configuration
28
Ipv6 Wired Network Configuration
31
DHCP Option for Ipv4
35
Supported DHCP Option for Ipv4
35
DHCP Option 66, Option 43 and Custom Option
35
DHCP Option 42, Option 2 and Option 100
36
DHCP Option 12
36
DHCP Option 12 Hostname Configuration
36
DHCP Option 120
37
DHCP Option 120 Configuration
37
DHCP Option 60
38
DHCP Option 60 Configuration
38
DHCP Option for Ipv6
38
Supported DHCP Option for Ipv6
38
DHCP Option 59 and Custom Option
39
Vlan
39
LLDP Configuration
39
CDP Configuration
40
Manual VLAN Configuration
41
DHCP VLAN Configuration
43
VLAN Change Configuration
44
Wi-Fi
44
Wi-Fi Configuration
44
Wireless Network IP Addressing Mode Configuration
49
Ipv4 Wireless Network Configuration
49
Ipv6 Wireless Network Configuration
53
Real-Time Transport Protocol (RTP) Ports
56
RTP Ports Configuration
57
Network Address Translation (NAT)
57
NAT Traversal Configuration
57
Keep Alive Configuration
60
Rport Configuration
61
SIP Port and TLS Port Configuration
61
Internet Port and PC Port
62
Supported Transmission Methods
62
Internet Port and PC Port Configuration
62
Vpn
64
Openvpn Related Files
64
VPN Configuration
65
Example: Using VPN Based on L2TP Prototol
66
Exporting the Openvpn Configuration File from the Phone
67
Importing the Openvpn Configuration File to Phone
67
Quality of Service (Qos)
67
Voice and SIP Qos Configuration
67
802.1X Authentication
68
802.1X Authentication Configuration
68
TR-069 Device Management
71
Supported RPC Methods
71
TR-069 Configuration
71
Phone Provisioning
74
Boot Files, Configuration Files, and Resource Files
74
Boot Files
74
Common Boot File
74
MAC-Oriented Boot File
75
Boot File Attributes
75
Customizing a Boot File
76
Configuration Files
76
Common CFG File
77
MAC-Oriented CFG File
78
MAC-Local CFG File
78
Configuration File Customization
78
Customizing a Configuration File
78
Configuration File Attributes
79
Resource Files
79
Supported Resource Files
79
Files Download Process
80
Provisioning Methods
81
Provisioning Methods Priority
82
Web User Interface
82
Accessing the Web User Interface
82
Quick Login Configuration
83
Web Server Type Configuration
84
Navigating the Web User Interface
85
Phone User Interface
86
Central Provisioning
86
Auto Provisioning Settings Configuration
87
User-Triggered Provisioning Settings Configuration
93
PIN Code Provisioning Settings Configuration
94
Viewing Configurations Configured Via Different Provisioning Methods
94
Setting up a Provisioning Server
95
Supported Provisioning Protocols
95
Provisioning Protocols Configuration
95
Supported Provisioning Server Discovery Methods
96
Zero Touch Provision Configuration
96
Pnp Provision Configuration
97
DHCP Provision Configuration
97
Static Provision Configuration
99
Configuring a Provisioning Server
100
Keeping User's Personalized Settings after Auto Provisioning
100
Keeping User's Personalized Settings Configuration
101
Auto Provisioning Flowchart for Keep User's Personalized Configuration Settings
101
Example: Keeping User's Personalized Settings
102
Clearing User's Personalized Configuration Settings
103
Example: Deploying Phones from the Provisioning Server
103
Security Features
106
User and Administrator Identification
106
User and Administrator Identification Configuration
106
User Access Level Configuration
107
Auto Logout Time
108
Auto Logout Time Configuration
108
Phone Lock
108
Operation Behaviors on Lock Phone
109
Phone Lock Configuration
109
Transport Layer Security (TLS)
111
Supported Cipher Suites
111
Supported Trusted and Server Certificates
112
Supported Trusted Certificates
113
TLS Configuration
115
Secure Real-Time Transport Protocol (SRTP)
117
SRTP Configuration
118
Encrypting and Decrypting Files
120
Configuration Files Encryption Tools
120
Configuration Files Encryption and Decryption
120
Contact Files Encryption and Decryption
120
Encryption and Decryption Configuration
121
Incoming Network Signaling Validation
124
Incoming Network Signaling Validation Configuration
124
USB Port Lock
125
USB Port Lock Configuration
125
Firmware Upgrade
127
Firmware for each Phone Model Firmware Upgrade Configuration
127
Using Handsets with T57W/T54W/T53W/T53 Phones
129
Handset Backlight
129
Handset Backlight Configuration
129
Handset Keypad Light
130
Handset Keypad Light Configuration
130
Handset Wallpaper
131
Handset Wallpaper Configuration
131
Handset Screen Saver
131
Handset Screen Saver Configuration
131
Handset Name
132
Handset Name Configuration
132
Number Assignment
132
Number Assignment Configuration
133
End Call on Hook
134
End Call on Hook Configuration
134
Advisory Tones
134
Advisory Tones Configuration
135
Base PIN
136
Base PIN Configuration
136
DECT Intercom
137
DECT Intercom Configuration
137
Shared Directory
138
Shared Directory Configuration
138
Shared Contact File Customization
139
Shared Contact File Elements and Attributes
139
Customizing Shared Contact File
139
Satellite Mode
139
Satellite Mode Configuration
140
Example: Configuring the Satellite Mode Feature
141
Repeater Settings Parameters
142
Handset Settings Parameters
143
Custom Handset Related Configurations
147
Handset Firmware Upgrade Configuration
148
Audio Features
150
Alert Tone
150
Alert Tone Configuration
150
Touch Tone
152
Touch Tone Configuration
152
Ring Tones
152
Custom Ringtone Limit
152
Ringtone Configuration
153
Distinctive Ring Tones
155
Supported Alert-Info Headers Format
155
Alert-Info: Bellcore-Drn
155
Alert-Info: Ringtone-N/Alert-Info: Ringtone-Ringn.wav
155
Mymelodyringn.wav)
157
Alert-Info: <URL
158
Alert-Info: Info=Info Text;X-Line-ID=0
159
Distinctive Ring Tones Configuration
159
Ringer Device
160
Ringer Device Configuration
161
Audio Volume
161
Ringer Volume Configuration
161
Sending Volume Configuration
162
Tones
164
Supported Tones
164
Tones Configuration
165
Audio Codecs
170
Supported Audio Codecs
170
Audio Codecs Configuration
172
Packetization Time (Ptime)
175
Supported Ptime of Audio Codec
175
Ptime Configuration
176
Early Media
176
Early Media Configuration
177
Headset Prior
177
Headset Prior Configuration
177
Dual Headset
178
Dual Headset Configuration
178
Acoustic Clarity Technology
179
Acoustic Echo Cancellation (AEC)
179
AEC Configuration
179
Noise Suppression
179
Noise Suppression Configuration
179
Background Noise Suppression (BNS)
180
Automatic Gain Control (AGC)
180
Voice Activity Detection (VAD)
180
VAD Configuration
180
Comfort Noise Generation (CNG)
180
CNG Configuration
180
Jitter Buffer
181
Jitter Buffer Configuration
181
Smart Noise Block
183
Smart Noise Block Configuration
183
Acoustic Shield
183
Acoustic Shield Configuration
183
Smart Noise Filtering
184
Smart Noise Filtering Configuration
184
Dtmf
184
DTMF Keypad
185
Transmitting DTMF Digit
185
Transmitting DTMF Digit Configuration
185
Suppress DTMF Display
187
Suppress DTMF Display Configuration
187
Transfer Via DTMF
187
Transfer Via DTMF Configuration
187
Local DTMF Tone
188
Local DTMF Tone Configuration
188
Voice Quality Monitoring (VQM)
188
Rtcp-Xr
189
RTCP-XR Configuration
189
Vq-Rtcpxr
189
Voice Quality Reports
189
Voice Quality Reports Configuration
190
VQ-RTCPXR Display
191
VQ-RTCPXR Display Configuration
192
Central Report Collector
195
Central Report Collector Configuration
195
Phone Customization
196
Language
196
Supported Languages
196
Language Display Configuration
197
Language for Phone Display Customization
198
Customizing a Language Pack for Phone Display
198
Custom Language for Phone Display Configuration
199
Example: Setting a Custom Language for Phone Display
199
Language for Web Display Customization
200
Customizing a Language Pack for Web Display
200
Customizing a Language Pack for Note Display
201
Custom Language for Web and Note Display Configuration
201
Contrast
202
Contrast Configuration
202
Wallpaper
203
Wallpaper Configuration
203
Wallpaper Customization
205
Custom Wallpaper Picture Limit
205
Custom Wallpaper Configuration
205
Deleting a Custom Picture
205
Adding a Wallpaper from a USB Flash Drive
205
Example: Setting a Custom Picture as Wallpaper
206
Transparency
206
Transparency Configuration
206
Screen Saver
207
Screensaver Display Customization
207
Screensaver File Elements and Attributes
208
Customizing the Screen Saver File
209
Custom Screensaver Picture Limit
209
Screensaver Configuration
209
Adding a Screensaver Picture from a USB Flash Drive
212
Deleting a Screensaver Picture
212
Backlight
212
Supported Backlight Options
213
Backlight and Time Configuration
213
Label Length for Line Key Display
215
Label Length Display Configuration
216
Label Alignment for Line/Ext Key Display
216
Label Alignment Display Configuration
217
Page Switch Key
217
Page Switch Key Configuration
217
Page Tips
218
Phone Page Tips
218
Phone Page Tips Indicator
218
Phone Page Tips Configuration
219
Expansion Module Page Tips
219
Expansion Module Page Tips Indicator
219
Expansion Module Page Tips Configuration
219
Time and Date
220
Time Zone
220
NTP Settings
224
NTP Configuration
224
DST Settings
226
Auto DST File Attributes
226
Customizing Auto DST File
227
DST Configuration
227
Time and Date Manually Configuration
229
Time and Date Format Configuration
230
Date Customization Rule
231
Idle Clock Display
232
Idle Clock Display Configuration
232
Logo Customization
232
Custom Logo Picture Limit
233
Customizing a Logo Picture
233
Custom Logo Configuration
234
Example: Setting a Custom Logo Display
235
Call Display
235
Call Display Configuration
236
Display Method on Dialing
238
Display Method on Dialing Configuration
239
Key as Send
239
Key as Send Configuration
239
Softkey Layout
240
Softkey Layout File Customization
240
Softkey Layout File Elements and Attributes
240
Customizing Softkey Layout File
241
Softkey Layout Configuration
242
Example: Setting the Soft Keys Layout in Talking State
243
Input Method
244
Keypad Input Method File Customization
244
Customizing the Keypad Input Method File
244
Onscreen Keyboard Input Method File Customization
245
Description of the Onscreen Keyboard Input Method Files
245
Lang File Elements and Attributes
246
Customizing a Lang File
246
Ime File Elements and Attributes
247
Customizing an Ime File
248
Layout File Elements and Attributes
248
Customizing a Layout File
249
Input Method Configuration
249
Example: Configuring the French Onscreen Keyboard Input Method
251
Notification Popups
252
Notification Popups Configuration
252
Power LED Indicator
253
Power LED Indicator Configuration
253
Bluetooth
256
Bluetooth Configuration
256
Handset/Headset/Speakerphone Mode
258
Handset/Headset/Speakerphone Mode Configuration
258
DSS Keys
259
Supported DSS Keys
260
Supported Dsskey Types
260
Line Keys
261
Line Keys Configuration
261
Example: Set a Park/Retrieve Key for FAC Call Park Mode
265
Example: Set a Park/Retrieve Key for Transfer Call Park Mode
266
Example: Setting a Line Key as Directed Pickup Key
266
Example: Setting a Line Key as Group Pickup Key
267
Example: Setting a Line Key as Forward Key
267
Example: Setting a Line Key as BLF List Key
268
Example: Setting a Line Key as Private Hold Key
268
Example: Setting a Line Key as Multicast Paging Key
268
Programmable Keys
268
Supported Programmable Keys
269
Programmable Keys Configuration
269
Ext Keys
272
Ext Keys Configuration
273
Dsskey Lock Configuration
275
Dsskey Page Reset Configuration
276
Enhanced DSS Keys
277
Guidelines for Configuring Enhanced DSS Keys
277
Macro Action Strings
277
EDK Configuration
281
EDK List Configuration
282
EDK User Input Prompt Configuration
282
EDK Soft Keys Configuration
284
Example: Configuring EDK List for a Line Key
288
Example: Using EDK Macro Strings as the Contact Number
288
Power Saving
288
Power Saving Configuration
289
Search Source List in Dialing
291
Search Source File Customization
292
Search Source File Attributes
292
Customizing Search Source File
293
Search Source List Configuration
293
Recent Call Display in Dialing
295
Recent Call in Dialing Configuration
295
Icon Customization
295
Custom Icons Configuration
296
Warnings Display
296
Warnings Display Configuration
296
Out of Service
297
Out of Service Configuration
297
Account Settings
298
Account Registration
298
Supported Accounts
298
SIP Accounts Registration Configuration
298
PSTN Account Configuration
302
Registration Settings Configuration
303
Outbound Proxy in Dialog
305
Outbound Proxy in Dialog Configuration
305
Server Redundancy
306
Behaviors When Working Server Connection Fails
307
Registration Method of the Failover/Fallback Mode
307
Fallback Server Redundancy Configuration
307
Failover Server Redundancy Configuration
308
SIP Server Name Resolution
312
SIP Server Name Resolution Configuration
312
Static DNS Cache
313
Behave with a Configured DNS Server
313
Static DNS Cache Configuration
314
Logon Wizard
317
Logon Wizard Configuration
317
Multiple Line Keys Per Account
319
Multiple Line Keys Per Account Configuration
319
Auto Line Labels Rule Configuration
321
Default Account
322
Directory
324
Local Directory
324
Contact Avatars and Icons Picture Limit
324
Preparing the Tar Formatted File
324
Local Contact File Customization
326
XML Conversion Table
326
Local Contact File Elements and Attributes
326
Customizing Local Contact File
328
Local Contact Files and Resource Upload
328
Example: Adding Contacts Using a Contact File
330
Local Contacts Backup
331
Favorite Contacts
332
Favorites Configuration
332
Google Contacts
333
Google Contacts Configuration
333
Signing in to the Google Contact Server
334
Lightweight Directory Access Protocol (LDAP)
334
LDAP Attributes
334
Securely Storing the LDAP Credentials
335
LDAP Configuration
335
Remote Phone Book
342
Remote Phone Book File Customization
342
Remote Phone Book File Elements
342
Customizing Remote Phone Book File
343
Remote Phone Book Configuration
343
Example: Configuring a Remote Phone Book
345
Directory List for Directory/Dir Soft Key
345
Directory List File Customization
345
Directory List File Attributes
346
Customizing Directory List File
347
Directory List Configuration
347
Example: Configuring a Directory List
349
Directory Search Settings
349
Directory Search Settings Configuration
349
Number Matching Settings
350
Number Matching Settings Configuration
350
Example: Matching Contacts with the Caller's Phone Number Using the Regular Expression
351
Call Log
353
Call Log Display Call Log Configuration Call Logs Backup
353
Call Features
358
Dial Plan Defined by Four Patterns (Old Dial Plan Mechanism)
358
Basic Regular Expression Syntax for Four Patterns
359
Replace Rule File Customization
359
Replace Rule File Attributes
359
Customizing the Replace Rule File
360
Dial Now File Customization
360
Dial Now File Attributes
360
Customizing the Dial Now File
361
Replace Rule Configuration
361
Dial Now Configuration
362
Area Code Configuration
363
Block out Configuration
364
Example: Adding Replace Rules Using a Replace Rule File
365
Dial Plan Defined by Digit Map (New Dial Plan Mechanism)
365
Basic Regular Expression Syntax for Digit Map
366
Digit Map for All Lines Configuration
367
Digit Map for a Specific Line Configuration
370
Emergency Dialplan and Enhanced 911
373
Emergency Dialplan and Enhanced 911 Configuration
374
Hotline Configuration
378
Off Hook Hot Line Dialing
379
Off Hook Hot Line Dialing Configuration
379
Live Dialpad
380
Live Dialpad Configuration
380
Auto Redial
380
Auto Redial Configuration
380
Recall Configuration
381
Speed Dial
382
Speed Dial Key Configuration
382
Password Dial
382
Password Dial Configuration
383
Call Timeout
383
Call Timeout Configuration
383
Anonymous Call
384
Anonymous Call Configuration
384
Call Number Filter
385
Call Number Filter Configuration
385
IP Address Call
386
IP Address Call Configuration
386
Ignoring Incoming Calls
386
Ignoring Incoming Calls Configuration
387
Off Hook Answering
387
Off Hook Answering Configuration
387
Auto Answer
388
Auto Answer Configuration
388
Anonymous Call Rejection
391
Anonymous Call Rejection Configuration
391
Call Waiting
392
Call Waiting Configuration
392
Do Not Disturb (DND)
393
DND Settings Configuration
394
DND Feature Configuration
396
DND in Phone Mode Configuration
396
DND in Custom Mode Configuration
397
DND Synchronization for Server-Side Configuration
398
Multiple Call Appearances
399
Multiple Call Appearances Configuration
399
Call Hold
400
Call Hold Configuration
401
Music on Hold (Moh) Configuration
403
Call Mute
403
Microphone Mute Configuration
403
Keep Mute
404
Keep Mute Configuration
404
Mute Alert Tone
404
Mute Alert Tone Configuration
404
Call Forward
405
Call Forward Settings Configuration
405
Call Forward Feature Configuration
407
Call Forward in Phone Mode Configuration
407
Call Forward in Custom Mode Configuration
411
Call Forward Synchronization for Server-Side Configuration
415
Call Transfer
417
Call Transfer Configuration
417
Transfer Mode for Dsskey Configuration
418
Conference
419
Conference Type Configuration
419
Local Conference Configuration
419
Network Conference Configuration
420
USB Recording
421
USB Recording Configuration
421
Multicast Paging
422
Multicast Paging Group Configuration
423
Multicast Listening Group Configuration
424
Multicast Paging Settings
424
Multicast Paging Settings Configuration
425
Advanced Features
428
Call Pickup
428
Directed Call Pickup
428
Directed Call Pickup Configuration
428
Group Call Pickup
430
Group Call Pickup Configuration
430
Dialog Info Call Pickup
431
Dialog Info Call Pickup Configuration
432
Call Completion
432
Call Completion Configuration
435
Example: Using Call Completion
435
Call Park and Retrieve
435
Call Park and Retrieve Configuration
435
Example: Setting Call Park and Retrieve in FAC Mode
437
Example: Setting Call Park and Retrieve in Transfer Mode
437
Automatic Call Distribution (ACD)
438
ACD Key Configuration
438
ACD Configuration
438
Example: Setting ACD
440
Busy Lamp Field
440
BLF Key Configuration
441
BLF List Configuration
441
State Indicator of Remote Line
443
BLF/BLF List Subscription
444
BLF/BLF List Subscription Configuration
445
Visual and Audio Alert for Monitor Lines
447
Visual and Audio Alert for BLF Lines Configuration
447
Example: Configuring Visual and Audio Alert for Monitor Lines
449
LED Mode for BLF/BLF List Key
450
Supported BLF LED Modes
450
BLF LED Mode Configuration
452
BLF/BLF List Key LED Status and Behavior Configuration
452
Supported BLF/BLF List Key Behaviors
452
BLF Key Led/Icon and Behavior for Idle State Configuration
453
BLF Key Led/Icon and Behavior for Call-In State Configuration
454
BLF Key Led/Icon and Behavior for Call-Out State Configuration
455
BLF Key Led/Icon and Behavior for Talking State Configuration
456
BLF Key Led/Icon and Behavior for Parked-Against State Configuration
458
BLF Key Led/Icon and Behavior for Hold State Configuration
459
BLF Key Led/Icon and Behavior for DND State Configuration
460
BLF Key for Intercom Configuration
460
Call Information Display Configuration
461
Shared Line
461
State Indicator of Shared Line
461
Shared Call Appearance (SCA) Configuration
462
SCA Configuration
463
Bridge Lines Appearance (BLA)
464
BLA Configuration
464
Intercom
465
Intercom Key Configuration
466
State Monitor for Intercom Contact
466
State Indicator of Intercom Contact
466
State Monitor for Intercom Contact Configuration
467
Outgoing Intercom Configuration
467
Incoming Intercom Configuration
468
CSTA Control
469
CSTA Control Configuration
470
Action URL
470
Predefined Events List
470
Variable Values List
472
Action URL Configuration
473
Action URI
483
Supported HTTP/HTTPS GET Request
484
Supported SIP Notify Message
484
Variable Values List
485
Action URI Configuration
488
Example: Capturing the Current Screen of the Phone
489
Example: Placing a Call Via Web User Interface
490
Voice Mail
491
MWI for Voice Mail Configuration
491
Short Message Service (SMS)
493
SMS Configuration
493
XML Browser
493
XML Browser Configuration
494
Hot Desking
496
Hot Desking Key Configuration
496
Hot Desking Configuration
496
Device Management
498
Device Management Configuration
498
General Features
499
Line Identification Presentation
499
CLIP and COLP Configuration
499
Return Code for Refused Call
501
Return Code for Refused Call Configuration
501
Return Code for Unanswered Call
501
Return Code for Unanswered Call Configuration
501
Hide Feature Access Codes
502
Hide Feature Access Codes Configuration
502
Accept SIP Trust Server Only
503
Accept SIP Trust Server Only Configuration
503
100 Reliable Retransmission
503
100 Reliable Retransmission Configuration
504
SIP Session Timer
504
SIP Session Timer Configuration
504
Session Timer
505
Session Timer Configuration
506
Reboot in Talking
506
Reboot in Talking Configuration
507
Reserve # in User Name
507
Reserve # in User Name Configuration
507
Busy Tone Delay
508
Busy Tone Delay Configuration
508
CFG File Version Information
508
CFG File Version Information Configuration
508
Media Loopback
509
Media Loopback Configuration
509
Cloud
510
Cloud Configuration
511
Configuration Parameters
512
Broadsoft Parameters
512
Broadsoft Settings
512
Broadsoft UC
513
Broadsoft XSI
516
Broadsoft ACD
518
Broadsoft Centralized Call Recording
522
Broadsoft Security Classification
522
Broadsoft Hoteling
522
Broadsoft Flexible Seating
524
Broadsoft Call Decline
525
Broadsoft Network Directory
525
Broadsoft Visual Voice Mail
530
Broadsoft SCA
530
Broadsoft Call Park
531
Broadsoft Emergency Call
533
Broadsoft Call Waiting Sync
533
Start2Start ACD Parameters
533
Alcatel-Lucent Barge in Parameters
535
Ethernet Interface MTU Parameters
536
SIP Settings Parameters
536
Call Settings Parameters
540
Unify Parameters
542
Troubleshooting Methods
543
Exporting All the Diagnostic Files
543
Log Files
543
Local Logging
543
Local Logging Configuration
544
Exporting the Log Files to a Local PC
546
Uploading Log to the USB Flash Drive
547
Viewing the Log Files
547
Syslog Logging
548
Syslog Logging Configuration
548
Viewing the Syslog Messages on Your Syslog Server
551
Resetting Phone and Configuration
551
Reset to Factory Configuration
551
Resetting the IP Phone to Default Factory Settings
552
Resetting the IP Phone to Custom Factory Settings
552
Custom Factory Configuration
552
Deleting the Custom Factory Settings Files
553
Resetting a Configuration to Default Factory Setting
553
Packets Capture
553
Capturing the Packets Via Web User Interface
554
Capturing the Packets in Enhanced Way
554
Capturing the Packets in Normal Way
554
Ethernet Software Capturing Configuration
555
Span to PC Port Configuration
555
Watch Dog
555
Watch Dog Configuration
556
Network Diagnostics
556
Ping and Traceroute Diagnostics
556
Network Reachability Detection Configuration
557
Analyzing Configuration Files
558
Exporting CFG Configuration Files from Phone
558
Importing CFG Configuration Files to Phone
559
Configuration Files Import URL Configuration
559
Exporting bin Files from the Phone
559
Importing bin Files from the Phone
559
BIN Files Import URL Configuration
559
Device Status
560
Viewing Device Status
560
Phone Reboot
560
Rebooting the IP Phone Remotely
560
Notify Reboot Configuration
561
Rebooting the Device Via the Phone User Interface
561
Rebooting the Device Via Web User Interface
561
Troubleshooting Solutions
562
IP Address Issues
562
The Device Does Not Get an IP Address
562
Solving the IP Conflict Problem
562
The Specific Format in Configuring Ipv6 on Yealink Phones
562
Time and Date Issues
563
Display Time and Date Incorrectly
563
Display Issues
563
The Phone Screen Is Blank
563
The Phone Displays "No Service
563
Phone Book Issues
563
Difference between a Remote Phone Book and a Local Phone Book
563
Audio Issues
563
Increasing or Decreasing the Volume
563
Get Poor Sound Quality During a Call
563
There Is no Sound When the Other Party Picks up the Call
564
Play the Local Ringback Tone Instead of Media When Placing a Long-Distance Number Without Plus
564
Wi-Fi and Bluetooth Issues
564
The Wireless Signal Strength Is Low
564
The Phone Cannot Connect to Bluetooth Devices All the Time
564
The Bluetooth Headset Affects IP Phone's Voice Quality
564
Firmware and Upgrading Issues
564
Fail to Upgrade the Phone Firmware
564
Verifying the Firmware Version
565
The IP Phone Does Not Update the Configurations
565
System Log Issues
566
Fail to Export the System Log to a Provisioning Server (FTP/TFTP Server)
566
Fail to Export the System Log to a Syslog Server
566
Protocols and Ports Issues
566
What Communication Protocols and Ports Do Yealink IP Phones Support
566
Password Issues
567
Restore the Administrator Password
567
The Web Screen Displays "Default Password Is in Use. Please Change
567
Logo Issues
568
Why Does the IP Phone Use DOB Format Logo File Instead of Popular BMP, JPG and so on
568
Power and Startup Issues
568
Both Poe Cable and Power Adapter Is Connected to the Phone
568
The Power LED Indicator Has no Lights
568
The Phone Screen Is Black
568
The IP Phone Always Displays the Yealink Logo
568
Other Issues
568
The Difference Among User Name, Register Name, and Display Name
568
On Code and off Code
568
The Difference between RFC 2543 Hold Enabled and Disabled
569
The Difference between Shared Call Appearance (SCA) and Bridge Lines Appearance (BLA)
569
Appendix
570
RFC and Internet Draft Support
570
Reading Icons
572
5
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Yealink SIP-T2 Specifications
General
Brand
Yealink
Model
SIP-T2
Category
IP Phone
Language
English
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