Yealink SIP-T27P [7/841] Changes for release 80 guide version 80 1

About This Guide

vii

 Return Code When Refuse on page 267

 Call Forward on page 284

 LDAP on page 407

 Action URL on page 507

 Action URI on page 527

 Server Redundancy on page 534

The following sections are new for this version:

 Expansion Module on page 14

 Obtaining Configuration Files and Resource Files on page 42

 DHCP Option on page 62

 Bluetooth on page 107

 Enable Page Tips on page 109

 Label Length on page 110

 Account Registration on page 112

 Display Method on Dialing on page 126

 Redial Tone on page 227

 Ringer Device for Headset on page 229

 IP Direct Auto Answer on page 237

 Allow IP Call on page 239

 Accept SIP Trust Server Only on page 240

 Transfer Mode via Dsskey on page 313

 Allow Trans Exist Call on page 315

 Call Number Filter on page 346

 Call Timeout on page 380

 Send user=phone on page 381

 SIP Send MAC on page 384

 SIP Send Line on page 386

 Reserve # in User Name on page 388

 Password Dial on page 390

 Unregister When Reboot on page 392

 100 Reliable Retransmission on page 394

 Reboot in Talking on page 396