Product overview, Feature hightlights, Table 1: gxp1610 technical specifications – Grandstream GXP1610 Administration Guide User Manual
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GXP1610/GXP1620/GXP1625/GXP1628
Administration Guide
Page 12 of 49
PRODUCT OVERVIEW
FEATURE HIGHTLIGHTS
132*48 pixel backlit graphical LCD display(GXP1610 doesn’t support backlit)
2 dual-color line keys, 3 XML programmable context-sensitive soft keys, 8 BLF keys (GXP1628 
only), 3-way conference, multi-language support 
HD wideband audio (GXP1620/GXP1625/GXP1628 only), superb full-duplex hands-free 
speakerphone with advanced acoustic echo cancellation and excellent double-talk performance 
Large phonebook (up to 500 contacts) and call history (up to 200 records)
Automated personal information service (e.g., local weather, etc.), personalized music ring 
tone/ring back tone, flexible customizable screen content & format using XML, and advanced 
Web and enterprise applications, local weather service 
Dual switched 10/100 Mbps ports on GXP1610/GXP1620/GXP1625, dual switched auto-sensing 
10/100/1000 Mbps Ethernet ports on GXP1628, integrated PoE on GXP1625/GXP1628 
Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for 
advanced security protection, 802.1x for media access control 
Perfectly compatible with Grandstream UCM Features
Innovative UI design (easy and useable multi-language support )
Use with Grandstream’s UCM61xx series IP PBX appliance for Zero-Config provisioning, 1-touch 
call recording and more 
GXP1610/GXP1620/GXP1625/GXP1628 TECHNICAL SPECIFICATIONS
Table 1: GXP1610 Technical Specifications
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*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(pending),G.726-32, 
G.729 A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP 
INFO) 
Telephony Features
Hold, transfer, forward (unconditional/no-answer/busy), 3-way conference, 
call park/pickup, downloadable phone book (XML, LDAP, up to 500 
