HD Voice
LCD: 3.5inch (480×320) color screen
6 Soft keys programmable
USB (1A) Port for Charging
Support SIP2.0 (RFC3261) and correlative RFCs
SIP support 1 SIP servers, and backup SIP proxy servers
Supports SIP UDP / TCP/ TLS
SIP support SIP domain, SIP authentication (none, basic, MD5) , DNS name of server, Peer to Peer / IP Call
Multi languages displayed (web)