The 4621SW IP Telephone is based on the 4620SW with the same housing, feature buttons and software along with an enhanced backlit display. The 4621SW also supports the new EU24BL (backlit expansion module) and also includes a 2 port Ethernet switch. A new phone, the 4621SW will replace the 4620SW.
Call server-based features
Speed dialling
Call Log
A WML (Wireless Markup Language, a Web development and protocol) browser while offering the latest features and applications
The large display area allows up to 12 application-specific buttons to be presented and labelled at one time
Additionally, 12 Line/Feature buttons, 4 softkeys, and other fixed buttons provide access to powerful capabilities such as Call server-based features, Speed dialling and Call Log