|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, LLDPMED, LDAP, TR-069, 802.1x, TLS, SRTP|
|Network Interfaces||Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE|
|Voice Codecs||s Support for G.711μ/a, G.722 (wide-band), G.723, G.726-32, G.729 A/B, iLBC, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC|
|Telephony Features||Hold, transfer, forward (unconditional/no-answer/busy), call park/pickup, 3-way conference, 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-todial, flexible dial plan, hot desking, personalized music ringtones, server redundancy & fail-over|
|HD Audio||Yes, HD Handset and speakerphone with support for wideband audio|
|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|
|Power & Green Energy Efficiency||Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA PoE: IEEE802.3af Class 2, 3.84W-6.49W|
A Gigabit IP phone for basic users, the GXP1628 delivers a suite of powerful VoIP features in an easy-to-use fashion with a modern design. The GXP1628 offers support for up to 2 lines and features Gigabit ports to maximize connection speeds and call quality. The phone includes 8 BLF/speed dial keys that allows users to easily monitor presence and status of other extensions and transfer calls. Additional features include HD audio for crystal-clear calls, 3-way conferencing to maximize productivity, 3 XML programmable soft keys for customization, EHS support for Plantronics headsets and integrated PoE to allow one cord to power the phone and give it a network connection. These features and more allow the GXP1628 to be a high-quality and versatile Basic IP phone.
As all Grandstream IP phones do, the GXP1628 features state-of-the-art security encryption technology (SRTP and TLS). The GXP1628 supports a variety of automated provisioning options, including zero-configuration with Grandstream’s UCM series IP PBXs, encrypted XML files and TR-069, to make mass deployment extremely easy.