Operating Temperature
0-60°C
Touch Resolution
4096*4096
Switch
Self-resetting Switch
Phone
Standard ES280 IP Phone 2
Speech Coding
G.711, G.723, G.726, G.729
IP Protocol
IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP
DTMT Signal Mode
VOIP SIP Info (DIMF), RFC 2833 (DTMF)