Support NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE), and more
Grandstream GXP2020 - Overview
The GXP2020 Enterprise SIP phone's new design and enhanced features address the need for an elegant IP handset solution for the executive office at a highly competitive price. The GXP2020 provides excellent voice clarity, a comprehensive set of advanced call features, multi-language support, security protection, automated provisioning, and broad compatibility with leading SIP platforms. The GXP2020 features 6 lines, 7 programmable keys, 4 dynamic context-sensitive soft keys, dual switched 10M/100Mbps auto-sensing Ethernet ports with integrated PoE, a backlit 320x160 high resolution graphic LCD with multi-level grey scales, SRTP and TLS (pending) for privacy protection, as well as secure and automated provisioning for mass deployment. The GXP2020 is the second phone in the GXP Enterprise SIP Phone portfolio. It is ideal for both the executive office and advanced enterprise users.
Grandstream GXP-2020 Specifications
SIP Compliant and Protocols
SIP, TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP(both client and server), PPPoE, TFTP, NTP, etc.
Dual 10/100mbps Ethernet ports.
G.711 (a/u-law), G.723.1, G.729A/B, G.726, GSM, iLBC, and G.722 (wideband).
Superb Audio Quality
Advanced Digital Signal Processing (DSP), Silence suppression, VAD, CNG, AGC high fidelity wideband audio (G.722).
Custom Ringtone Software
Convert most music files to a Grandstream ringtone
Multi-line support, multi-party conferencing (4-way), multi-language support (MLS), headset enabled, expandable, intercom, AES encryption, etc.