Yealink SIP-T21 E2 Quick Start Manual page 8

About us
Founded in 2001, Yealink, the global TOP 3 SIP phone provider and a leading provider of VoIP Phone and IP communication
solutions, has been focusing on VoIP products characterized by reliable quality, easy deployment and affordable price for more
than a decade. Today, customers from over 140 countries rely on Yealink as the backbone of global collaboration to extend the
value of network communications.
More about Yealink
Since 2001, Yealink has continued to develop state-of-the art, hi-tech VoIP communication terminals that include IP video
phones, IP phones and USB phones. With a worldwide market in more than 140 countries, the company has also established
a first-class international service network.
Our priorities are quality, functionality, ease-of-use, customer support and competitive pricing. To provide new solutions for the
future in this fast-evolving sector, Yealink's large, talented and highly-experienced VoIP R&D team is totally committed to the
pursuit of excellence.
To date, we have passed more than 80 interoperability tests and meet certification requirements set by leading VoIP system and
platforms. Yealink works in close partnership with T-Mobile, Telefonica, Portugal Telecom and other leading telecommunication
service providers.
YEALINK NETWORK TECHNOLOGY CO., LTD. Email: sales@yealink.com Web: www.yealink.com