Yealink SIP-T21P User Manual

User Guide for the SIP-T21P 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.

Yealink SIP-T21P Specifications

General

Display	132 x 64-pixel graphical LCD
Network	10/100 Mbps Ethernet
SIP Accounts	2
Wall Mountable	Yes
Audio Features	HD Voice
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Voice Codecs	G.711(A/μ), G.729AB, G.726, G.722
Phonebook	1000 entries
Call Features	Call hold, call waiting, call transfer, call forward, 3-way conferencing
Security	SRTP, TLS, 802.1x, HTTPS
Ethernet Ports	2 x RJ45 10/100 Mbps
Power Supply	Power over Ethernet (PoE) or optional power adapter
Operating Humidity	10% to 90% (non-condensing)
Languages	Supports multiple languages
PoE	Yes (802.3af)
Operating Temperature	-10°C to 50°C