Yealink SIP-T21P User Manual

Customizing Your Phone
43
4. Press the Option soft key, and then select Detail from the prompt list.
The detailed information of the entry appears on the LCD screen.
To place a call from the call history list:
1. Press the History soft key.
2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded.
3. Press or to scroll to the desired entry.
4. Press the Send soft key.
To add a contact to the local directory or blacklist from the call history list:
1. Press the History soft key.
2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded.
3. Press or to scroll to the desired entry.
4. Press the Option soft key, and then select Add to Contacts (or Add To Blacklist) from
the prompt list.
5. Enter the desired values in the corresponding fields, and then press the Save soft
key.
For more information, refer to Contact Management on page 27.
To delete an entry from the call history list:
1. Press the History soft key.
2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded.
3. Press or to scroll to the desired entry.
4. Press the Delete soft key.
To delete all entries from the call history list:
1. Press the History soft key.
2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded.
3. Press the Option soft key, and then select Del All from the prompt list.
4. Press the Ok soft key.

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