Supply FEATURES: IEEE 802.3af Power over Ethernet (integrated) Optional universal AC external power supply: 100-240V, 0.4A, 48V/19W Display: Dimensions (pixel): 248 x 68 (L x H) White LED backlight with custom intensity control Keyboard: Standard 12-key Keyboard Soft contextual keys: 3 Intake/unplug buttons, redial, mute, volume on/down Features Audio: Speaker Frequency: 220-14,000 Hz Volume: Adjustable up to 86 dB at 1/2 meter distance (maximum volume) Individual volume settings with visual feedback for each audio path Detection of voice activity Noise filling of comfort Generation of DTMF tones / Payload RTP of DTMF events Low-latency audio packages Low-latency Buffer of adaptive jitter Occultment of package loss Noise background noise suppression G.711 (A-law and Mu-law) G.729a (Annex B) G.722, G.722.1 G.722.1C Siren 14 Call Management Functions: Shared appearance of call/connected line Busted lamp field (BLF) Incoming/waiting call timer treatment Transfer call timer, wait, deviation (back), response Information on caller part, caller and connected Local three-way conference Quick selection, redial Call wait Lost Remote Call Notification Automatic call Location Off Hook function Other Features: Local user interface rich in functionality Date and time Date and time Directory of contacts and call history configurable by user (lost, effected and received) Customizable progress scoreboards Wave audio file support for progress ringtones Unicode UTF-8 Multilingual user interface including simplified Chinese, Danish, Dutch, English (Canada / US / UK), French, German, Italian, Japanese, Korean, Swedish, Portuguese Ethernet 10/100 Base-T 2.5 mm Connector Porte microphone EX: Support for RJ-9 Configuration of IP address: DHCP and IP Static Time synchronization with SNTP centralized projection server based on FTP/TF2.2/HTTP/HTTPS server for mass distributions, with support for redundancy of the Web server for individual configuration of the QAToS Support Unit FCC Part 15 (CFR 47) Class B ICES-003 Class B EN55022 Class B CISPR22 Class B AS/NZS CISPR22 Class B VCCI Class B EN22024 Telecommunications: AS/ACIF S004 Telepermit KCC GOST-R TRA Protocol Support: IETF SIP (RFC 3261 and RFC related) IEEE version 802.3af Power over Ethernet includes: 25-foot Ethernet cable Quick Introductory Guide Quick User Guide Version with AC power includes: 25-foot Ethernet cable Universal power supply cable specific to the region from 7 feet Power supply cable Quick introductory guide Quick user guide Environmental conditions: Operating temperature: 32 - 104 degrees F (0 - 40 degrees C) Relative humidity: 20%-85% (without condensation) Storage temperature: -22 - 131 degrees F (-30 - 55 degrees C) Country of Origin: Thailand Phone size: 14,5 x 12,25 x 2.5 inch (36,8 x 31,1 x 6,4 cm) (L x P x H) Telephone console weight: 1.75 pounds (0,8 kg) Box size: 13,0 x 15.5 x 6,0 inch (33