Yealink SIP-T20 - Page 6

User Guide for the SIP-T20P/SIP-T20 IP Phone
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Major updates have occurred to the following:
 LED Instructions on page 4
 Anonymous Call on page 75
Major updates have occurred to the following:
 Appendix A - Time Zones on page 111
Major updates have occurred to the following:
 LED Instructions on page 4
 Ring Tones on page 24
 Anonymous Call on page 75
 Troubleshooting on page 97
Major updates have occurred to the following:
 Appendix A - Time Zones on page 111
Major updates have occurred to the following sections:
 Basic Network Settings on page 14
 Keypad Lock on page 21
 Contact Management on page 26
 DSS Keys on page 37
Major updates have occurred to the following:
 Keypad Lock on page 21
 Volume on page 24
 Ring Tones on page 24