| 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 |
| Network Interfaces | Dual switched auto-sensing 10/100 Mbps Ethernet ports |
| Graphic Display | 132 x 48 LCD display |
| Feature Keys | 2 line keys with dual-color LED and 1 SIP account, 3 XML programmable context sensitive soft keys, 5 (navigation, menu) keys. 13 dedicated function keys for PAGE/ INTERCOM, PHONEBOOK, MESSAGE, HOME, HOLD, RECORD, MUTE, HEADSET, TRANSFER, CONFERENCE, SEND and REDIAL, SPEAKERPHONE, VOLUME |
| Voice Codecs | Support for G.711µ/a, G.722 (wide-band), G.723, G.726-32, G.729 A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC |
| Headset Jack | RJ9 headset jack (allowing EHS with Plantronics headsets) |
| Telephony Features | Hold, transfer, forward (unconditional/no-answer/busy), 3-way conferencing, call park/pickup, shared-call appearance (SCA) / bridged-line-appearance (BLA), Downloadable phone book (XML, LDAP, up to 500 items), call waiting, call history (up to 200 records), off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot desking, personalized music ringtones, server redundancy & fail-over |
| HD Audio | Yes, HD handset and speakerphone with support for wideband audio |
| Base Stand | Yes, 2 angled positions available, wall mountable |
| Wall Mountable | Yes |
| QoS | Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS |
| Security | User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control |
| Multi-language | English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditional Chinese, Korean, Japanese and more |
| Upgrade and Provisioning | Firmware upgrade via TFTP / HTTP / HTTPS, mass provisioning using TR-069 or AES encrypted XML configuration file |
| Power and Green Energy Efficiency | Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA PoE: IEEE802.3af Class 2, 3.84W-6.49W (GXP1625 only) |
| Operating Temperature and Humidity | 0 ~ 40ºC (32 ~ 104ºF ), 10 ~ 90% (non-condensing) |
| Compliance | FCC: Part 15 (CFR 47) Class B CE: EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1 RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1 |
| Dimension | 209 x 184.5 x 76.2mm |
| Weight | 0.73kg |