Yealink SIP-T4 S Series User Manual

User Guide for T4 Series IP Phones
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4. Enter the desired value between 1 and 30 (minutes) in the User Input Extension Idle
TimeOut field.
5. Click Confirm.
Logo Customization
For the SIP-T42S/T42G/T41S/T41P/T40G/T40P IP phone, you can upload your custom logo
shown on the LCD screen.
Procedure:
1. Click Features->General Information.
2. Select Custom logo from the pull-down list of Use Logo.
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Yealink SIP-T4 S Series Specifications

General

Brand	Yealink
Model	SIP-T4 S Series
Category	IP Phone
Language	English