Tech specs
Brand
Grandstream
Product Line
Grandstream
Model
GRP2604P
Manufacturer
Grandstream
IP Address Assignment
DHCP, PPPoE
IP Telephony Network Ports
2 x Ethernet 10Base-T/100Base-TX/1000Base-T
Network Features
6 SIP accounts, Class 2 PoE, Grandstream Device Management System (GDMS), Up to 3 call appearances
Network Protocols
ARP, DNS, DNS A record, DNS NAPTR, DNS SRV, FTP, HTTP, HTTPS, ICMP, IP, Lightweight Directory Access Protocol (LDAP), Link Layer Discovery Protocol (LLDP), NTP, RTP, SNMP, SRTP, TCP, TFTP, TR-069, UDP
Phone Connections
Headset jack / RJ-9
Backlit Display
Yes
Color Support
Monochrome
Display Diagonal Size
2.7 inch
Display Diagonal Size (metric)
6.9 centimetre
Display Languages
Multilingual
Display Location
Base
Display Resolution
132 x 64 pixels
Display Type
LCD display
Indicators & Controls
Message
Multiple Conferencing
5-way
Phone Directory Capacity
2000 names & numbers
Speakerphone
Yes
Voice Codec
G.711µ-law, G.711a-law, G.722, G.723, G.726, G.729A/B, iLBC, Opus
Additional Functions
Call pickup
Call Services
Call Forwarding, Call Hold, Call Parking, Call Transfer, Call Waiting
Dialer Location
Base
Lines Supported
3 lines
Main Features
Integrated Ethernet switch, Multiple VoIP protocol support
Packaged Quantity
1
Placing/Mounting
Table-top, Wall-mountable
Power Over Ethernet (PoE) Support
Yes
Product Type
VoIP phone
Quality of Service
Differentiated Services (DiffServ), IEEE 802.1p, IEEE 802.1Q (VLAN), Multiprotocol Label Switching (MPLS), Type of Service (ToS)
Security
256-bit AES, EAP-MD5, IEEE 802.1X, TLS
Voice Features
Acoustic echo cancellation (AEC), Adaptive jitter buffer (AJB), Automatic gain control (AGC), Comfort noise generation (CNG), Packet loss concealment (PLC), Voice activity detection (VAD)
VoIP
Yes
VoIP Protocols
RTCP, RTCP-XR, RTP, SIP, SRTP
Volume Control
Yes
Cables
Network cable
Phone Accessories Included
Stand
Base Depth
20.6 centimetre
Base Height
6.8 centimetre
Base Weight
790 gram
Base Width
21.4 centimetre
Color Category
Black
ENERGY STAR Certified
No
EPEAT Compliant
No
TCO Certified
No