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Yealink SIP-T21P User Manual

Yealink SIP-T21P
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User Guide for the SIP-T21P IP Phone
50
XML Browser
You can use this key feature to access the XML browser quickly. The XML browser allows
you to create custom services which meet your functional requirements on the server.
You can customize practical applications, such as weather report, stock information,
Google search, etc.
Dependencies:
Type (XML Br)
Value (the access URL for xml browser)
Usage: Press the DSS key to access the XML browser specified in the Value field.
LDAP
You can use this key feature to access the LDAP search interface quickly.
Dependencies:
Type (Key Event)
Key Type (LDAP)
Usage:
1. Press the DSS key to access the LDAP search interface.
2. Enter a few continuous characters of the contact name or number using the keypad.
The contacts whose name or number matches the characters entered will appear on
the LCD screen.
Conference
You can use this key feature to set up a conference call. For more information, refer to
Conference on page 86.
Dependencies:
Type (Key Event)
Key Type (CONF)
Value (the number you want to add to the conference)
Usage: Press the DSS key during an active call to set up a conference with the number
specified in the Value field.
Note
Forward
You can use this key feature to forward an incoming call to someone else. For more
information, refer to Call Forward on page 78.
Dependencies:
Type (Key Event)
Key Type (Forward)
Value (the number you want to forward to)
When you leave the Value field blank, the DSS key performs the same function as the
Conference soft key during a call.

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Yealink SIP-T21P Specifications

General IconGeneral
Display132 x 64-pixel graphical LCD
Network10/100 Mbps Ethernet
SIP Accounts2
Wall MountableYes
Audio FeaturesHD Voice
ProtocolsSIP v1 (RFC2543), v2 (RFC3261)
Voice CodecsG.711(A/μ), G.729AB, G.726, G.722
Phonebook1000 entries
Call FeaturesCall hold, call waiting, call transfer, call forward, 3-way conferencing
SecuritySRTP, TLS, 802.1x, HTTPS
Ethernet Ports2 x RJ45 10/100 Mbps
Power SupplyPower over Ethernet (PoE) or optional power adapter
Operating Humidity10% to 90% (non-condensing)
LanguagesSupports multiple languages
PoEYes (802.3af)
Operating Temperature-10°C to 50°C

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