Yealink SIP-T2XP Administrator's Manual page 14

Administrator's Guide for SIP-T2xP and SIP-T19P IP Phones
Configuring Audio Features ..................................................199
Headset Prior ............................................................................................................................... 199
Dual Headset ............................................................................................................................... 200
Audio Codecs .............................................................................................................................. 201
Acoustic Clarity Technology ........................................................................................................ 205
Acoustic Echo Cancellation ................................................................................................. 205
Voice Activity Detection ....................................................................................................... 206
Comfort Noise Generation .................................................................................................. 207
Jitter Buffer ............................................................................................................................ 208
Configuring Security Features ...............................................211
Transport Layer Security .............................................................................................................. 211
Secure Real-Time Transport Protocol .......................................................................................... 217
Encrypting Configuration Files ................................................................................................... 219
Upgrading Firmware .............................................................225
Resource Files ........................................................................229
Replace Rule Template ............................................................................................................... 229
Dial-now Template ....................................................................................................................... 230
Softkey Layout Template ............................................................................................................. 231
Local Contact File ........................................................................................................................ 233
Remote XML Phone Book ............................................................................................................ 234
Directory Template ...................................................................................................................... 235
Super Search Template ............................................................................................................... 237
Specifying the Access URL of Resource Files ............................................................................ 238
Troubleshooting .....................................................................241
Troubleshooting Methods ........................................................................................................... 241
Viewing Log Files .................................................................................................................. 241
Capturing Packets ................................................................................................................ 244
Enabling Watch Dog Feature .............................................................................................. 245
Getting Information from Status Indicators ........................................................................ 246
Analyzing Configuration File ............................................................................................... 246
Troubleshooting Solutions ........................................................................................................... 247
Why is the LCD screen blank? ............................................................................................. 247
Why doesn't the IP phone get an IP address? ................................................................... 247
Why does the IP phone display "No Service"? ................................................................. 248
How do I find the basic information of the IP phone? ....................................................... 248
Why doesn't the IP phone upgrade firmware successfully? ............................................. 248
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