Yealink SIP-T21P User Manual

User Guide for the SIP-T21P IP Phone
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You can access your corporate directory through your phone. You can add local
contacts, search for a contact, or simply dial a contact number from the corporate
directory.
You can configure your new phone to access up to 5 corporate directories. The phone
supports up to 2000 corporate directory entries. For the access URL of the corporate
directory, contact your system administrator.
To configure an access URL for remote phone book via web user interface:
1. Click on Directory->Remote Phone Book.
2. Enter the access URL in the Remote URL field.
3. Enter the name in the Display Name field.
4. Click Confirm to accept the change.
Note
To access your corporate directory via phone user interface:
1. Press Menu->Dir->Remote Phone Book.
If Remote Phone Book is added to the directory, press Dir->Remote Phone Book to
enter remote phone book.
2. Press or to select the desired remote group, and then press the Enter soft
key.
An access URL for remote phone book 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