| Product Model |
Grandstream GRP2604 |
| Product Type |
Carrier-Grade Essential IP Phone |
| SIP Accounts |
Up to 6 SIP accounts |
| Lines |
3 lines / up to 3 call appearances |
| Display |
2.7-inch backlit graphical LCD, 132 × 64 pixels |
| Line Keys |
3 dual-color LED SIP account keys |
| BLF Keys |
10 programmable BLF keys |
| Soft Keys |
4 XML-programmable context-sensitive soft keys |
| Conference |
5-way audio conferencing |
| Audio |
Full-duplex speakerphone with HD audio |
| Noise Reduction |
Noise Shield technology and AI noise reduction |
| Network Ports |
2 × 10/100/1000 Mbps Gigabit Ethernet |
| PoE |
GRP2604: No PoE / GRP2604P: IEEE 802.3af PoE |
| Headset |
RJ9 headset port with EHS support for Plantronics, Jabra and Sennheiser |
| Voice Codecs |
G.729A/B, G.711 μ/A-law, G.726, G.722, G.723.1, iLBC and Opus |
| DTMF |
In-band, RFC2833 and SIP INFO |
| Phonebook |
XML/LDAP, up to 2,000 contacts |
| Call History |
Up to 800 records |
| Security |
Secure Boot, dual firmware images, encrypted data storage, TLS, SRTP and 802.1X |
| Provisioning |
TFTP, HTTP/HTTPS, FTP/FTPS, TR-069 and AES-encrypted XML |
| Management |
Grandstream Device Management System (GDMS) |
| QoS / Network |
VLAN 802.1Q, 802.1p, LLDP, IPv4/IPv6 and QoS |
| Faceplate |
Swappable faceplate for company logo customization |
| Power Supply |
100–240 VAC, 50–60 Hz; 5 VDC / 600 mA |
| Operating Temperature |
0°C to 40°C |
| Dimensions |
208 × 180 × 63.4 mm |
| Weight |
Approx. 670 g |
| Key Benefit |
Professional carrier-grade IP phone with 6 SIP accounts, 3 lines, 10 BLF keys, Gigabit Ethernet, HD audio, 5-way conferencing and centralized GDMS management |
