Grandstream GHP Series GHP621
VoIP phone | 3-way call capability | SIP | 2 lines | black
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Main Specification
| Product Description | Grandstream GHP Series GHP621 - VoIP phone - 3-way call capability |
|---|---|
| Product Type | VoIP phone |
| Main Features | Integrated Ethernet switch |
| VoIP Protocols | SIP |
| Voice Codecs | G.722, G.723, G.726, iLBC, G.729A/B, G.711a-law, G.711μ-law |
| Lines Supported | 2 lines |
| Speakerphone | Yes |
| Call Services | Voice Mail, Call Transfer, Call Hold, Call Mute |
| Display | LCD display - colour - Yes |
| Network Ports Qty | 1 x Ethernet 10/100Base-TX |
| Body Colour | Black |
General
| Product Type | VoIP phone |
|---|---|
| Shipping Weight | 860 g |
| Body Colour | Black |
Phone Features
| Call Services | Voice Mail, Call Transfer, Call Hold, Call Mute |
|---|---|
| Dialer Location | Base |
| Conference Call Capability | 3-way |
| Speakerphone | Yes |
| Programmable Buttons Qty | 6 |
| Volume Control | Yes |
| Indicators | Voice message waiting indicator |
| Additional Functions | Speed dial memory, redial, flash function, conference mode, door release function, Hands-free calling |
IP Telephony
| Main Features | Integrated Ethernet switch |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP |
| Voice Codecs | G.722, G.723, G.726, iLBC, G.729A/B, G.711a-law, G.711μ-law |
| Lines Supported | 2 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 |
| Security | 256 bit AES, IEEE 802.1X, TLS, SRTP |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | IP, TCP, TFTP, UDP, ICMP, ARP, HTTP, HTTPS, Link Layer Discovery Protocol (LLDP), SRTP, TR-069, RTCP, RTP, NTP, RTCP-XR, DNS SRV, DNS NAPTR, SSH, STUN, TLS, DNS A record, IPv6, IPv4 |
| Network Ports Qty | 1 x Ethernet 10/100Base-TX |
| Voice Features | HD audio |
Display
| Type | LCD display - colour |
|---|---|
| Display Location | Base |
| Backlit | Yes |
| Display Languages | English, Chinese |
Miscellaneous
| Connections | USB Type-C Network / RJ-45 |
|---|---|
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table-top |
| Included Accessories | Faceplate(s), stand, power adapter |
Dimensions & Weight (Base)
| Width | 13.2 cm |
|---|---|
| Depth | 21 cm |
| Height | 8.98 cm |
| Weight | 560 g |
Dimensions & Weight (Shipping)
| Shipping Weight | 860 g |
|---|
Product features
Enhanced audio quality
Experience crystal-clear communication with HD audio, supporting a wide range of voice codecs including G.711a-law, G.711μ-law, G.722, G.723, G.726, G.729A/B, and iLBC. This ensures high-quality sound for every call, whether it's a simple conversation or a complex conference call.Robust connectivity options
Equipped with integrated Ethernet switch and support for both IPv4 and IPv6, the Grandstream GHP621 ensures seamless network integration. Power over Ethernet (PoE) support adds convenience and flexibility to deployment, eliminating the need for separate power supplies.Advanced call features
With functionalities such as hands-free calling, conference mode, door release, flash function, redial, and speed dial memory, this VoIP phone is designed to enhance productivity and support a variety of communication needs.Comprehensive security
The device offers robust security features including 256-bit AES encryption, IEEE 802.1X, SRTP, and TLS. These protocols safeguard your communications, ensuring that every call and data transmission remains private and secure.Versatile placement options
Designed for flexibility, the Grandstream GHP621 can be easily placed on a table-top or mounted on the wall, making it a perfect fit for any office environment. The inclusion of faceplate(s), power adapter, and stand in the phone accessories ensures you have everything needed for setup.Key selling points
- 2 SIP Accounts, 2 Lines
- GDMS online device management and provisioning
- 3-way audio conferencing for easy conference calls
- Swappable faceplate to allow for easy customization
- Hearing Aid Compatibility (HAC)
- Enterprise-level protection including secure boot
References
MPN: GHP621
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14/10/2026 01:27:35