Yealink SIP-T21P User Manual

User Guide for the SIP-T21P IP Phone
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5. To adjust the display order of enabled lists, select the desired list and then click
or .
The LCD screen displays the list(s) in the adjusted order.
6. Click Confirm to accept the change.
Note
To check the directory via phone user interface:
1. Press the Dir soft key when the phone is idle.
The LCD screen displays the list(s) in the directory.
If there is only one list in the directory, press the Dir soft key to enter this list directly.
The built-in phone directory can store contact names and numbers. You can store up to
1000 contacts and 6 groups (including the default All Contacts, Company, Family and
Friend) in your phone's local directory; add new contacts and groups; edit, delete or
search for a contact; or simply dial a contact number from the local directory.
Directory is 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