Grandstream Networks Grandstream GXP-2010 User Manual page 11

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NAVIGATION (4)
NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices
Device
including behind firewall/NAT
Management
Auto/manual provisioning system, GUI Interface
Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
Expansion interface, Address Book
Full-duplex hands-free speakerphone, headset enabled
Audio Features
Advanced Digital Signal Processing (DSP)
Dynamic negotiation of codec and voice payload length
Support for G.723,1 (5.3/6.3K), G.729A/B, G.711 a/µ-law, G.726-32, G.722 (wide-
band), GSM and iLBC codecs
In-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)
Silence Suppression, VAD (voice activity detection), CNG (comfort noise
generation), ANG (automatic gain control)
Acoustic Echo Cancellation (AEC) with Acoustic Gain Control (AGC) for
speakerphone mode, Support side tone
Adaptive jitter buffer control (patent-pending) and packet delay & loss concealment
Intuitive graphic user interface (GUI), downloadable phone book (XML, LDAP),
Telephony
support for anonymous call using privacy header, MLS (multi language support)
Features
Voice mail indicator, downloadable custom ring-tones, call hold, call transfer
(attended/blind), call forward, call waiting, caller ID, mute, redial, call log, caller ID
display or block, Do-Not-Disturb (DND) and volume control
Multi-party conferencing (up to 5), dial plans, off-hook auto dial, auto answer, early
dial and speed dial
Via keypad/LCD, Web browser, or secure (AES encrypted) central configuration file,
Network and
manual or dynamic host configuration protocol (DHCP) network setup
Provisioning
Support NAT traversal using IETF STUN and Symmetric RTP
Support for IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS
Support firmware upgrade via TFTP or HTTP,
Firmware
Support for Authenticating configuration file before accepting changes
Upgrades
User specific URL for configuration file and firmware files
Message waiting indication, support DNS SRV Look up and SIP Server Fail Over,
Advanced
Support customizable idle screen via downloading XML by HTTP/TFTP
Server Features
DIGEST authentication and encryption using MD5 and MD5-sess, SRTP, SIP over
Security
TLS (pending)
Grandstream Networks, Inc.
Yes Yes
Yes Yes
Yes Yes
GXP User Manual
Firmware 1.1.5.15
Yes Yes
Yes Yes
Yes Yes
Page 11 of 38
Last Updated: 12/2007