Yealink SIP-T48S User Manual page 89

Tap Delete.
3.
The touch screen prompts the following warning:
Tap OK to confirm the deletion or Cancel to cancel.
4.
To delete all contacts:
Tap .
1.
The IP phone enters the local directory directly as there is only Local Directory enabled in
the directory by default.
If Local Directory is removed from the directory (refer to
->Directory->All Contacts to enter the local directory.
Tap Setting.
2.
Tap the checkbox of Select All.
3.
Tap Delete.
4.
Customizing Your Phone
Directory on page 68), tap
79