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India’s Trusted Custom & Gaming PC Store
Brand | Grandstream |
Model | GHP621 |
Color | Black |
Product Type | IP Phone |
Product Model | GHP621 |
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 |
Feature Keys | 26 keys, including 6 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, 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, Redial, Flash ,Hands-free, Voice Mail(with the server), Transfer, Conference, 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) |
Layer 3 QoS (ToS, DiffServ, MPLS) | |
Security | Secure boot |
Random default password | |
Unique security certificate per device | |
Administrator level passwords | |
256-bit AES encrypted configuration file | |
SRTP, TLS, 802.1x media access control | |
Multi-Language | English and Chinese |
Upgrade / Provisioning | Firmware upgrade via FTP/TFTP/HTTP/HTTPS |
Fast boot in 15 seconds | |
Mass provisioning using GDMS/TR-069 or AES encrypted XML configuration file | |
Temperature And Humidity | Operation: 0°C to 40°C |
Storage: -10°C to 60°C | |
Humidity: 10% to 90% (Non-condensing) | |
Warranty | 1 Years Manufacturer Warranty |
Note | *Features, Price and Specifications are subject to change without notice. |
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