A multi-function HD SIP phone designed for high-end business. Elegant appearance, excellent performance, suitable for a variety of environments. 3.5-inch 320 x 480 pixel backlit graphic LCD display, good visual effect. Excellent HD voice quality and a variety of system functions to meet the different needs of users. The C66 SIP phone uses a dual GIGABit Ethernet port and is easy to install, configure, and use. Supports four SIP accounts and the three-party conference function. Seamlessly interconnects with the IP PBX to provide rich service functions.
Gigabit Color Screen IP Phone，HD Voice，Up to 4 Extension accounts，3.5” 480 x 320 pixel Graphical LCD with Backlight，Dual‐port Gigabit Ethernet，Supports 4 SIP Accounts and Three-way Calling.
Safe and Reliable，SIP v1(RFC2543),v2(RFC3261)，SIP over TLS,SRTP，HTTP/HTTPS/FTP/TFTP，ARP/RARP/ICMP/NTP/DHCP，DNS SRV/A Query/NATPR Query，STUN, Session Timer(RFC4028)，DTMF:In‐Band,RFC2833, SIP INFO.
Features |
| HD Voice |
| Configuration via HTTP/HTTPS web |
| Phonebook: 500 Groups |
| Echo Cancellation/Dynamic Jitter |
| Wideband Codec: G.722 |
| SMS, Voicemail, MWI |
| 4 SIP Accounts |
Features |
| Software upgrade via web |
| Auto provisioning: FTP/TFTP/HTTP/HTTPS/PnP |
| Three‐way Calling |
| Narrowband Codec: PCMA, PCMU, G.729, G723_53, G723_63, G726_32 |
| Music On‐hold, Intercom, Multicast |
| Call Waiting |
| 3.5”Color TFT Display with High Resolution |