Two-line display (2 x 16 characters) - 27 keys, 7 LEDs - 6 programmable function keys - Ethernet: 2 port switch - Up to 6 lines - Headset connection - SIP RFC3261 - Security: SIPS/SRTP, TLS - STUN, ENUM, NAT - Codecs: G.711, G.729A, G.723.1, G.722, G.726, GSM 6.10 (full rate)