- General Information
 - Manufacturer
 - Grandstream Networks, Inc
 
- Manufacturer Website Address
 - http://www.grandstream.com
 
- Brand Name
 - Grandstream
 
- Product Series
 - GXP
 
- Product Type
 - IP Phone
 
A reliable IP phone for small business users, the GXP1620/1625 delivers a suite of powerful VoIP features in an easy-to-use fashion with a modern design. The GXP1620/1625 offers support for up to 2 lines and features full HD audio on both the speaker and handset to allow users to communicate with the utmost clarity. The GXP1625 features built-in Poe while the GXP1620 does not. Additional features include 3-way conferencing to maximize productivity, 3 XML programmable soft keys for customization and EHS support for Plantronics headsets. These features allow the GXP1620/1625 to be a high-quality and easy-to-use small business IP phone
As all Grandstream IP phones do, the GXP1620/1625 features state-of-the-art security encryption technology (SRTP and TLS). The GXP1620/1625 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.
- Technical Information
 - Base Unit Connectivity Technology
 - Corded
 
- IP Phone Technology
 - VoIP
 
- Total Number of Phone Lines
 - 2
 
- Speakerphone
 - Yes
 
- Interfaces/Ports
 - Network (RJ-45)
 - Yes
 
- Number of Network (RJ-45) Ports
 - 2
 
- PoE (RJ-45) Port
 - Yes
 
- Management & Protocols
 - Communication Protocols
 - SIP
 
- TCP
 
- UDP
 
- RTP
 
- RTCP
 
- ARP
 
- ICMP
 
- DHCP
 
- PPPoE
 
- NTP
 
- STUN
 
- LLDP-MED
 
- LDAP
 
- TLS
 
- SRTP
 
- RARP
 
- Power Description
 - Power Source
 - AC Adapter
 
- Physical Characteristics
 - Product Color
 - Black
 
- Form Factor
 - Wall Mountable
 
- Height
 - 3"
 
- Width
 - 7.3"
 
- Weight (Approximate)
 - 1.61 lb
 
- Miscellaneous
 - Country of Origin
 - China