Grandstream DP755 DECT VoIP Base Station, 20 SIP accounts, 20 lines,1x Ethernet 10/100 PoE, 5V/1A Micro-USB PSU

Radio interface Communication standards: DECT Frequency ranges: 1880-1900 MHz (Europe), 1920-1930 MHz (USA), 1910-1920 MHz (Brazil), 1786-1792 MHz (Korea), 1893-1906 MHz (Japan), 1880-1895 MHz (Taiwan) Number of channels: 10 (Europe), 5 (USA, Brazil, Japan), 3 (Korea), 8 (Taiwan) Outdoor coverage area: up to 400 m (DP730), up to 350 m (DP722/DP720) Indoor coverage area: up to 50 m External elements Three LED indicators: power, network, paging/pairing button DECT One 10/100 Mbps Ethernet port with auto-negotiation and PoE Protocols/standards SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A-record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP Speech codecs G.711μ/a-law, G.723.1, G.729A/B, G.726-32, iLBC, G.722, OPUS, G.722.2/AMR-WB (spec.), in-band and out-of-band DTMF (in RFC2833 audio signal, SIP INFO), VAD, CNG, PLC, AJB Telephony functions Hold, transfer, forwarding, conference with three participants, downloadable phonebook (XML, LDAP, up to 3,000 entries), call waiting , call log (up to 1,500 entries), answering machine, flexible configuration of subscriber groups, switching to a backup server in case of failure Quality of service Layer 2 QoS (802.1Q, 802.1P) and Layer 3 QoS (ToS, DiffServ, MPLS) Safety User and administrator level access control , MD5 and MD5-sess authentication, 256-bit AES encryption configuration file, TLS, SRTP, HTTPS, 802.1x-based media access control, DECT authentication and encryption Multiple languages English, Czech, German, Spanish, French, Hebrew, Italian, Dutch, Polish, Portuguese, Russian, Turkish, Arabic, Chinese Simplified, Chinese Traditional, Japanese, Korean, Slovak, Serbian Update/Setup Firmware update via TFTP/HTTP/HTTPS or via local download HTTP, bulk configuration using TR-069 or an XML configuration file with AES encryption Multiple SIP accounts Up to 20 separate SIP accounts per system Each handset can be linked to 20 SIP accounts Each SIP account can be linked to any handset Call Groups Extensive options for configuring multiple handsets in one SIP account. Parallel mode: all phones ring at the same time; when one phone answers, new calls can be made from the rest. Handset mode: Multiple handsets are linked to one account, but all incoming calls are routed to one handset. Nutrition and energy efficiency Universal power supply: Input: 100-240 VAC, 50/60 Hz; Output: DC 5V, 1 A; Micro-USB connector; PoE: IEEE802.3af, Class 1; 0.44 - 3.84 W Package Contents Basic Module, Universal Power supply, Ethernet Cable, Quick Start Guide, GLP license Dimensions (H × W × D) 140,31 x 64,98 x 105 mm Weight Base module: 140 g; universal power supply: 50 g; package: 370 g Temperature and humidity Operation: -10...+45 °C; storage: -20...+60 °C Humidity: 10-90 % (non-condensing) Accordance FCC: FCC, Part 15B; FCC, Part 15D; MPE; FCC ID CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 60950-1; EN 301 489-1/-6; EN 301 406; EN 50385; RED NB certification RCM: AS/NZS 32; AS/NZS 60950.1 ANATEL: ANATEL, EAC, UL (adapter)