Yealink SIP-T2xP Administration Manual

Also see for Yealink SIP-T28P: User guide Auto provisioning guide User guide User guide User guide

Contents

Yealink SIP-T2xP Administration Manual Manual pdf 12 page image

Administrator’s Guide for SIP-T2xP IP Phones4Appendix C: SIP (Session Initiation Protocol)............................................................................ 177RFC and Internet Draft Support .......................................................................................... 178SIP Request ............................................................................................................................ 179SIP Header ............................................................................................................................ 180SIP Responses ....................................................................................................................... 181SIP Session Description Protocol (SDP) Usage .................................................................. 184Appendix D: SIP Call Flows ........................................................................................................ 184Successful Call Setup and Disconnect ............................................................................... 185Unsuccessful Call Setup—Called User is Busy .................................................................. 188Unsuccessful Call Setup—Called User Does Not Answer ................................................ 191Successful Call Setup and Call Hold .................................................................................. 194Successful Call Setup and Call Waiting ............................................................................. 197Call Transfer without Consultation ...................................................................................... 202Call Transfer with Consultation ............................................................................................ 207Always Call Forward ............................................................................................................ 213Busy Call Forward ................................................................................................................ 216No Answer Call Forward ..................................................................................................... 219Call Conference .................................................................................................................... 222Appendix E: Sample Configuration File .................................................................................... 227Index ......................................................................................233