Grandstream GXP2135, 8-line, Enterprise HD IP Phone, Bluetooth, 320x240 TFT color LCD, dual GigE ports with 802.3af PoE, (with power supply)

Protocols/standards SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV, NAPTR), DHCP, PPPoE, SSH, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x, TLS, SRTP*, IPV6, CDP/SNMP/RTCP-XR Network interfaces Two switched Ethernet ports 10/ 100/ 1000 Mbps with automatic recognition and built-in PoE support Graphic Display 2.8 inch (320x240) TFT color LCD Bluetooth Yes, built-in The keys 8 keys, up to 4 SIP accounts, 4 context-sensitive programmable keys, 5 navigation/menu keys, 11 special keys for the following functions: MESSAGE (WITH LED INDICATOR), PHONE BOOK, TRANSFER, CONFERENCE, HOLD, HEADSET, MUTE, SEND/ REDIAL, SPEAKERPHONE, VOLUME +, VOLUME - Support for voice codecs Support G.729A/B, G.711µ/a-law, G.726, G.722 (broadband), G723.1, iLBC, Opus, in-band and out-of-band DTMF signals (in audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC Auxiliary ports Headset with RJ9 connector (which allows the use of EHS with Plantronics headsets) Phone Functions Call Hold, Transfer, Call Redirection, 4-way conference, Call parking, Call Interception, General Call Indication (SCA) / Call Interception (BLA), Downloadable phonebook (XML, LDAP, up to 2000 entries), Call waiting, Call history (up to 500 entries), XML screen setup, auto-dial when the handset is off, answering machine, mouse-click dialing, flexible number plan, "hot" workplace, personal ringtones and music for standby mode, server backup and switching in case of failure. HD Audio Yes, HD tube and speaker with broadband audio support Base stand Yes, 2 corner positions are available, it is possible to mount on the wall QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS Safety Passwords at the user and administrator level, authentication MD5 and MD5-sess, a 256-bit configuration file protected by an algorithm AES, SRTP*, TLS, 802.1x media access control Multi-language support English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Chinese, Korean, Japanese. Update/ Promotion Firmware update via TFTP/HTTP/HTTPS, mass connection using TR-069 or AES encrypted XML configuration file, FTP/FTPS Nutrition and energy efficiency Universal Power Adapter: Input: 100-240V; Output: +12V, 0.5A; Built-in power supply function via Ethernet(802.3af) Maximum power consumption: 6.4W(power adapter) or 6.49W (PoE) Physical properties Dimensions: 201mm(W) x 193mm(L) x 85mm(H); Weight of the device:0.85 kg; Package weight: 1.12 kg Temperature and humidity Operating conditions: from 0°C to 40°C, Storage from -10°C to 60°C, humidity: from 10% to 90% without condensation Package contents GXP2135 phone, handset with cord, base, universal power supply, network cable, quick installation guide, license GPL Compliance with the requirements of compatibility standards: FCC: Part 15 (CFR 47) Class B CE: EN55022 Class B; EN55024 Class B;EN61000-3-2; EN61000-3-3;EN60950-1 RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950.