Yealink SIP-T22 - Manual (Page 7)

About This Guide
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Major updates have occurred to the following sections:

Basic Network Settings on page 14
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Keypad Lock on page 22
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Contact Management on page 28

DSS Keys on page 48
Major updates have occurred to the following sections:

Keypad Lock on page 22

Volume on page 25

Ring Tones on page 26
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Call Completion on page 72

DSS Keys on page 48
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Do Not Disturb (DND) on page 75
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Call Forward on page 78
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Call Pickup on page 90
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Busy Lamp Field (BLF) on page 97