Yealink SIP-T21 - Manual (Page 48)

User Guide for the SIP-T21P/SIP-T21 IP Phone
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6. (Optional.) Select the contact information you want to import into the local directory
from the pull down list of Index.
7. Click Import to complete importing the contact list.
To export contact list via web user interface:
1. Click on Directory->Local Directory.
2. Click Export XML (or Export CSV).
3. Click Save to save the contact list to your local system.
Note
The built-in phone directory can store names and numbers for a blacklist. You can store
up to 30 contacts in your phone’s blacklist; add, edit, delete or search for a contact in
the blacklist; even dial a contact number from the blacklist, but any incoming call from
the blacklist will be rejected automatically.
To add a contact to the blacklist manually:
1. Press Menu->Dir->Blacklist.
2. Press the Add soft key.
Importing/exporting contact lists are configurable via web user interface only.