The Yealink T21P E2 is the newest version from the standard model this phone is a 2-line entry level IP phone that can perform the basic functions you need for extended phone use. The T21P E2 has a phone directory, HD-Voice, a 5-line graphical LCD screen. Dual 10/100 Mbps network ports with integrated PoE are ideal for extended network use. The T21P E2 supports two VoIP account, simple, flexible and secure installation options, plus support for IPv6, Open VPN and a redundancy server.
-Yealink HD Voice.
-132×64-pixel graphical LCD with backlight.
-Two-port 10/100M Ethernet Switch.
-Up to 2 SIP accounts.
-Simple, flexible and secure provisioning options.