Voice Features Voice Codecs: G.711, G.723.1, G.726, G.729AB, G.722, VAD, CNG, AEC, PLC, AJB, AGC Telephony Features 1 VoIP User Account Direct IP call without SIP proxy Call Hold Call Waiting Call Transfer Block Anonymous Calls Hotline Redial 2 Speed Dials Volume Control Call Mute Ringtone Selection (via web) Tone scheme Integrated Voice Response System Network FeaturesSIP v1(RFC2543), v2(RFC3261) NAT transverse: STUN mode IP Assignment: Static/DHCP/PPPoE In-Band DTMF, Out-of-Band DTMF (RFC2833) SIP Info Proxy mode and Peer-to-peer SIP link mode TFTP/DHCP/PPPoE client DNS client NAT/DHCP server | IP PBX System Integratio Music on Hold Intercom Group Paging Call Pickup Call Park Call Forward DND Distinctive Ringing Dial plan Dial now Voicemail Message Waiting Indication (MWI) Config, Upgrade and Usage Configuration: browser/phone /auto-provision/IVR Auto provision via TFTP/FTP/ HTTP/PnP Auto provision: firmware configuration, ringtone etc. Security QoS: IEEE 802.1p/q tagging (VLAN), Layer 3ToS Digest authentication using MD5/MD5-sess Secure configuration file via AES encryption Admin/user configuration mode | Physical Features TI TITAN chipset 20 keys including 2 programmable keys 4 feature keys (Mute/Redial/ Transfer/Hold) 1xLEDs for power and status indication 1xRJ45 10/100M Ethernet ports Phone label for speed dialing numbers Power adapter: AC 100~240V input and DC 5V/1.2A Output Power over Ethernet (IEEE 802.3af class 1) optional Operating humidity: 10~95% Storage temperature: up to 60 C Package features Qty/CTN: 5 PCS N.W/CTN: 7.87KG G.W/CTN: 9.00KG Measurement: 0.073CMB Carton Meas: 470x287x222MM | Additions Coming Soon DSCP/802.1pq HTTPS (Server/Client) SRTP (RFC3711) Transport Layer Security (TLS) Built-in web server (HTTPS |