Grandstream GRP2604P
VoIP phone | 5-way call capability | SIP, RTCP, RTP, SRTP, RTCP-XR | 3 lines
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Main Specification
| Product Description | Grandstream GRP2604P - VoIP phone - 5-way call capability |
|---|---|
| Product Type | VoIP phone |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, RTCP, RTP, SRTP, RTCP-XR |
| Voice Codecs | G.722, G.723, G.726, iLBC, Opus, G.729A/B, G.711a-law, G.711μ-law |
| Lines Supported | 3 lines |
| Speakerphone | Yes |
| Call Services | Call Waiting, Call Forwarding, Call Transfer, Call Hold, Call Parking |
| Display | LCD display - monochrome - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
General
| Product Type | VoIP phone |
|---|---|
| Shipping Weight | 1.1 kg |
Phone Features
| Call Services | Call Waiting, Call Forwarding, Call Transfer, Call Hold, Call Parking |
|---|---|
| Dialer Location | Base |
| Conference Call Capability | 5-way |
| Speakerphone | Yes |
| Volume Control | Yes |
| Indicators | Message |
| Additional Functions | Call pickup |
IP Telephony
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP, RTCP, RTP, SRTP, RTCP-XR |
| Voice Codecs | G.722, G.723, G.726, iLBC, Opus, G.729A/B, G.711a-law, G.711μ-law |
| Lines Supported | 3 lines |
| Quality of Service | IEEE 802.1Q (VLAN), Differentiated Services (DiffServ), IEEE 802.1p, Type of Service (ToS), Multiprotocol Label Switching (MPLS) |
| IP Address Assignment | DHCP, PPPoE |
| Security | 256 bit AES, EAP-MD5, IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | IP, TCP, TFTP, UDP, ICMP, ARP, HTTP, DNS, SNMP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, TR-069, RTP, NTP, DNS SRV, DNS NAPTR, Lightweight Directory Access Protocol (LDAP), FTP, DNS A record |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC) |
| Network Features | Class 2 PoE, Grandstream Device Management System (GDMS), up to 3 call appearances, 6 SIP accounts |
Phone Memory
| Phone Directory Capacity | 2000 names & numbers |
|---|
Display
| Type | LCD display - monochrome |
|---|---|
| Display Location | Base |
| Diagonal Size | 2.7" |
| Display Resolution | 132 x 64 pixels |
| Backlit | Yes |
| Display Languages | Multilingual |
Miscellaneous
| Connections | Headset jack / RJ-9 |
|---|---|
| Placing / Mounting | Wall-mountable, table-top |
| Cables Included | Network cable |
| Included Accessories | Stand |
Dimensions & Weight (Base)
| Width | 21.4 cm |
|---|---|
| Depth | 20.6 cm |
| Height | 6.8 cm |
| Weight | 790 g |
Dimensions & Weight (Shipping)
| Shipping Weight | 1.1 kg |
|---|
Product features
Enhanced connectivity
Equipped with 2 x Ethernet 10Base-T/100Base-TX/1000Base-T network ports, the GRP2604P ensures high-speed, reliable connectivity, facilitating seamless communication within any business environment.Superior call quality
Features like acoustic echo cancellation (AEC), adaptive jitter buffer (AJB), and a suite of advanced voice codecs including G.711a-law, G.722, and Opus ensure that every call is clear, without any disturbances.Robust security
With 256-bit AES encryption, TLS, and IEEE 802.1X among its security protocols, the GRP2604P offers a fortified defense against potential cyber threats, ensuring your communications remain private and secure.Versatile functionality
Supporting up to 3 lines and 6 SIP accounts, along with integrated Ethernet switch and multiple VoIP protocol support, this device is designed to meet the diverse needs of modern businesses.Easy management
Thanks to the Grandstream Device Management System (GDMS), managing and configuring the device is straightforward, enabling efficient operation and maintenance.Key selling points
- 3 lines, 6 SIP accounts, up to 3 call appearances
- Supported by GDMS which provides a centralized interface to configure, provision, manage and monitor Grandstream devices
- Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
- Full-duplex speakerphone with HD audio to maximize audio quality and clarity
- Equipped with noise shield technology to minimize background noise
- Dual switched autosensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE
- Supports 5-way audio conferencing for easy conference calls
- Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
- Swappable faceplate to allow for easy logo customization
References
MPN: GRP2604P
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04/06/2026 03:50:30