Description
Grandstream GHP611 / GHP611W is a delicate IP Phone featuring one HD speaker on handset, 2 SIP accounts/lines, 3 programmable keys and 10 speed dial keys. GHP611W also supports Wi-Fi for easy installation without need for cabling. The models also support 3-way voice conferencing, using full band Opus voice codec and advanced jitter-resilience algorithm that tolerate up to 30% packet loss without impacting voice quality. The GHP61X series is supported by Grandstream’s Device Management System (GDMS), which provides a centralized interface to configure, provision, manage and monitor deployments of Grandstream endpoints.
Grandstream GHP611 / GHP611W
Protocols/Standards:
SIP: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, TLS, SRTP
Network: IPv4, IPv6, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV, NAPTR), DHCP, SSH, TFTP,
NTP, STUN, LLDP, TR-069, 802.1x
Network Interfaces:
One auto-negotiation 10/100 Mbps ethernet port integrated PoE Class 2 (GHP610/GHP611)
Wi-Fi GHP610W/GHP611W integrated dual-band 2.4GHz & 5GHz 802.11 a/b/g/n/ac
Feature Keys:
23 keys, including 3 programmable keys, 12 Standard Phone Digits keys (0-9: speed dial keys
configuration on web page, *, #), 5 Function keys (Flash, Redial, Hands-free, Voice Mail, Hold), 3
Volume Control keys, Up/Down/Mute(with red color LED)
HD Audio:
One HD handset support for wide band audio
Voice Conferencing:
2 SIP accounts and lines, up to 3-way conference
Voice Codecs and Capabilities:
Support for G.729A/B, G.711μ/a-law, G.726, G.722 (wide-band), G.723, iLBC, and full band
OPUS. In- band and out-of-band DTMF (in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC,
AJB.
Telephony Features:
Dial, Answer, Transfer, Conference, Redial, Flash ,Hands-free, Voice Mail (with the server) Hold /
Unhold, Mute /Unmute, flexible dial plan, Speed dial server redundancy & fail-over Call out.
Advanced Features:
Support for multicast paging and E911 service
Support for advanced jitter-resilience algorithm
Supports GDS Door Opening
Wall Installation:
1 Wall Mountable Base
QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS