Tech specs
Brand
Grandstream
Product Line
Grandstream GHP Series
Model
GHP611W
Manufacturer
Grandstream
IP Address Assignment
DHCP
Network Features
Grandstream Device Management System (GDMS)
Network Protocols
ARP, DNS A record, DNS NAPTR, DNS SRV, HTTP, HTTPS, ICMP, IP, IPv4, IPv6, Link Layer Discovery Protocol (LLDP), NTP, RTCP, RTCP-XR, RTP, SRTP, SSH, STUN, TCP, TFTP, TLS, TR-069, UDP
Indicators & Controls
Voice message waiting indicator
Multiple Conferencing
3-way
Speakerphone
Yes
Voice Codec
G.711µ-law, G.711a-law, G.722, G.723, G.726, G.729A/B, iLBC, Opus
Additional Functions
Conference mode, Door release function, Flash function, Hands-free calling, Multicast paging, Redial, Speed dial memory
Call Services
Call Hold, Call Mute, Call Transfer, Voicemail
Cordless Phone Standard
IEEE 802.11a/b/g/n/ac (Wi-Fi)
Dialer Location
Handset
Lines Supported
2 lines
Packaged Quantity
1
Placing/Mounting
Table-top, Wall-mountable
Product Type
VoIP phone
Programmable Buttons
3
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, IEEE 802.1X, SRTP, TLS
Voice Features
Acoustic echo cancellation (AEC), Adaptive jitter buffer (AJB), Automatic gain control (AGC), Comfort noise generation (CNG), HD audio, Packet loss concealment (PLC), Voice activity detection (VAD)
VoIP
Yes
VoIP Protocols
SIP
Volume Control
Yes
Wireless Interface Provided
Wi-Fi
Phone Accessories Included
Power adapter
Base Depth
8.3 inch
Base Height
1.7 inch
Base Weight
12.3 ounce
Base Width
2.1 inch
Color
Black
Color Category
Black
Hearing Aid Compatible
Yes