Product Category: Enterprise IP Phone

Brand: Grandstream

Model Number: GXP 2120

Description

• Support SIP (RFC3261), TCP/IP/UDP, RTP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP(both client and server), PPPoE, TFTP, NTP

• Dual switched 10/100Mbps Ethernet ports w/integrated Power-over-Ethernet (802.3af)

• Support NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE), and more

• Generous 320x160 pixel backlit graphical LCD display with up to 8 level grayscale

• 6 lines indicators with individual SIP account profiles

• 7 programmable hard keys and 4 XML programmable context-sensitive soft keys

• Multi-line support of up to 13 call appearance lines with dual-color LED indicators

• Expandable to additional 112 lines through expansion key-modules

• Support Caller ID display or block, per call or permanent

• Call waiting, hold, mute, transfer (blind or attended), forward, and more

• Multi-party conferencing (up to 5-way)

• Full duplex speakerphone w/advanced audio echo cancellation

• Headset jack (2.5 mm and RJ9) for broad headset compatibility

• Large phonebook (up to 2,000 contacts) and call history (up to 2,000 records)

• Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security protection, 802.1x for media access control

• Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security protection, 802.1x for media access control

• Automated personal information service (e.g., local weather, stock, currencies, RSS news, etc), personalized music ring tone/ring back tone/music-on-hold, flexible customizable screen content & format using XML, and advanced Web and enterprise applications integration (pending)

Specification

SIP Compliant and Protocols	SIP, TCP/IP/UDP, RTP, HTTP, ARP, ICMP, DNS (A record and SRV), DHCP, PPPoE, TFTP, NTP, etc.
Networking Interfaces	Dual 10/100mbps Ethernet ports
Voice Codecs	G.711 (a/u-law), G.723.1, G.729A/B, G.726, iLBC, and G.722 (wideband)
Superb Audio Quality	Advanced Digital Signal Processing (DSP), Silence suppression, VAD, CNG, AGC high fidelity wideband audio (G.722). HD handset
Custom Ringtone Software	Custom Ringtone Software
Advanced Functionality	Multi-line support, multi-party conferencing (5-way), multi-language support (MLS), headset enabled, expandable, intercom, AES encryption, etc.
Cost-effective IP Solution	Small to Medium enterprise office IP Phone