Table of ContentsUser Manual 175.2.16 SAVE Button (Assignment) ....................................................................................5215.2.17 Single-CO (S-CO) Button (Assignment) ................................................................5225.2.18 Tone Through Button (Assignment)........................................................................5235.2.19 Two-Way Record Button (Assignment) ..................................................................5245.2.20 Two-Way Transfer Button (Assignment) ................................................................5255.2.21 Voice Mail (VM) Transfer Button (Assignment) ....................................................5265.2.22 Direct Station Dialing..............................................................................................5305.2.23 One-Touch Dialing ..................................................................................................5315.2.24 One-Touch Access for System Features..................................................................5325.2.25 Call Transfer............................................................................................................5335.2.26 ANSWER and RELEASE Buttons Operation ........................................................5345.2.27 Monitoring an outside line activity .........................................................................5366 Appendix6.1 Appendix .....................................................................................................................5386.1.1 Display Examples......................................................................................................5386.1.2 Feature Numbers List ................................................................................................5466.1.3 Tone List....................................................................................................................5516.1.4 Troubleshooting.........................................................................................................553