Phone Installation On - Yealink SIP-T21 E2 User Manual

3. Enter the new user password in the New Password field and Confirm Password
field.
4. Click Confirm to accept the change.
You can also contact your system administrator for help.
Note If you are logging into the web user interface of the phone with user credentials, you
need to enter the current user password in the Old Password field.
User password is configurable via web user interface only.
Why can't I receive calls?
Check the SIP registration with your system administrator.

Check that the DND (Do Not Disturb) mode is deactivated on your phone. Refer to

Do Not Disturb (DND)
Check that call forward is disabled on the phone. Refer to

Check whether the caller number is stored in the blacklist directory. Refer to

on page 47.
Why does my handset not work?
Check that the handset cord is fully connected to both the handset jack on the phone
and handset. Refer to
Why does my headset not work?
Check that the headset cord is properly connected to the headset jack on the

phone. Refer to
on page 88.
Phone Installation on page 13.
Phone Installation on page 13.
Troubleshooting
Call Forward on page 92.
Blacklist
157