Yealink SIP-T2XP

Administrator’s Guide for SIP-T2xP and SIP-T19P IP Phones
xiv
TR-069 Device Management ...................................................................................................... 204
IPv6 Support ................................................................................................................................. 206
Configuring Audio Features ..................................................211
Headset Prior ............................................................................................................................... 211
Dual Headset ............................................................................................................................... 212
Audio Codecs .............................................................................................................................. 213
Acoustic Clarity Technology ........................................................................................................ 217
Acoustic Echo Cancellation ................................................................................................. 217
Voice Activity Detection ....................................................................................................... 218
Comfort Noise Generation .................................................................................................. 219
Jitter Buffer ............................................................................................................................ 220
Configuring Security Features ...............................................223
Transport Layer Security .............................................................................................................. 223
Secure Real-Time Transport Protocol .......................................................................................... 229
Encrypting Configuration Files ................................................................................................... 232
Resource Files ........................................................................238
Replace Rule Template ............................................................................................................... 238
Dial-now Template ....................................................................................................................... 239
Softkey Layout Template ............................................................................................................. 240
Directory Template ...................................................................................................................... 242
Super Search Template ............................................................................................................... 243
Local Contact File ........................................................................................................................ 244
Remote XML Phone Book ............................................................................................................ 246
Specifying the Access URL of Resource Files ............................................................................ 247
Troubleshooting .....................................................................250
Troubleshooting Methods ........................................................................................................... 250
Viewing Log Files .................................................................................................................. 250
Capturing Packets ................................................................................................................ 253
Enabling Watch Dog Feature .............................................................................................. 254
Getting Information from Status Indicators ........................................................................ 255
Analyzing Configuration File ............................................................................................... 255
Troubleshooting Solutions ........................................................................................................... 256
Why is the LCD screen blank? ............................................................................................. 256
Why doesn’t the IP phone get an IP address? ................................................................... 256
Why does the IP phone display “No Service”? ................................................................. 257
How do I find the basic information of the IP phone? ....................................................... 257
Why doesn’t the IP phone upgrade firmware successfully? ............................................. 257