Yealink SIP-T21P User Manual

User Guide for the SIP-T21P IP Phone
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To select a ring tone for the account via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.
3. Click on Basic.
4. Select the desired ring tone from the pull-down list of Ring Type.
If Common is selected, this account will use the ring tone selected for the phone.
Refer to the above instruction.
5. Click Confirm to accept the change.
Note
To upload a custom ring tone for your phone via web user interface:
1. Click on Settings->Preference.
2. Click Browse to locate a ring tone (file format must be *.wav) file from your local
system.
A ring tone for the account 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