Yealink T4 series, How To Configure

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2/28/2019 Auto Provision your Yealink T4 series IP Phone for 3CX v15
https://www.3cx.com/sip-phones/yealink-t4-series/ 5/5
Note : Ensure that the input mode is set to digits (green box).
Step 4: Extended Phone Configuration
IP phones can be tweaked to match the user’s needs. Those might be skipped if they are not desired and the
phone will be rolled out in a default configuration. Also, they can be altered at a later stage and changes
applied via the “Management Console → Phones → Select Device → Re-Provision”:
● IP Phone Configuration Options , configurable per device of the extension
● IP Phone BLF/DSS assignment , global for all devices of the extension
● IP Phone Vlan management , configurable per device of extension
● Customizing the IP Phone background logo
Known Limitations
1. Current no known limitations
2. In STUN provisioning assign a minimum of 12 RTP ports