User's Manual
Table Of Contents
- DOCUMENT PURPOSE
- GNU GPL INFORMATION
- WELCOME
- PRODUCT OVERVIEW
- INSTALLATION
- GETTING TO KNOW GXP1610/GXP1620/GXP1625
- CONNECTING TO DEVICES
- RESTORE FACTORY DEFAULT SETTINGS
- EXPERIENCING THE GXP1610/GXP1620/GXP1625
Firmware Version 1.0.0.11 
GXP1610/GXP1620/GXP1625 User 
Guide 
Page 10 of 31 
Headset Jack 
RJ9 headset jack (allowing EHS with Plantronics headsets) 
Base Stand 
Yes, allow 2 angle positions available, Wall Mountable 
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/Provisioning 
Firmware  upgrade  via  TFTP  /  HTTP /  HTTPS,  mass  provisioning  using 
TR-069 or AES encrypted XML configuration file 
Power  &  Green  Energy 
Efficiency 
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA 
Temperature  and 
Humidity 
Operation: 0°C to 40°C 
Storage: -10°C to 60°C 
Humidity: 10% to 90% Non-condensing 
Physical 
Dimension: 209mm(L)x 184.5mm(W)x 76.2mm(H) (with handset) 
Unit Weight: 0.74kg Package  Weight: 1.1kg 
Package Content 
GXP1610 phone, handset with cord, base stand, universal power supply, 
network cable, Quick Installation Guide, brochure, GPL license 
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 
Table 2: GXP1620/GXP1625 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 10/ 100 Mbps ports, integrated PoE (GXP1625 only) 
Graphical Display 
132*48 pixel backlit graphical LCD display  
Feature Keys 
2 line keys with dual-color LED and 2 SIP account. 3 XML programmable 
context  sensitive  soft  keys.  5  (navigation,  menu)  keys.  13  dedicated 
function keys for MUTE, HEADSET, TRANSFER, CONFERENCE, SEND 
and  REDIAL,  SPEAKERPHONE,  VOLUME,  PHONEBOOK,  MESSAGE, 
HOLD, PAGE/INTERCOM, RECORD, HOME 
Voice Codecs 
Support  for  G.711µ/a,  G.722  (wide-band),  G.723,  G.726-32,  G.729  A/B, 
iLBC,  Opus  (pending),  in-band  and  out-of-band  DTMF  (In  audio, 
RFC2833, SIP INFO) 
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  1000 
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. 
Headset Jack 
RJ9 headset jack (allowing EHS with Plantronics headsets) 
HD Audio 
Yes, HD handset and speakerphone with support for wideband audio 
Base Stand 
Yes, 2 angle positions available, Wall Mountable 
QoS 
Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS 










