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Grandstream Networks GXP21 Series

Grandstream Networks GXP21 Series
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Feature
Keys
3 line keys with up to 3 SIP accounts, 8 speed-dial/BLF extension keys with dual-color LED, 4 programmable
contexts sensitive softkeys, 5 navigation/menu keys, 11 dedicated function keys for: MESSAGE (with LED
indicator), PHONEBOOK, TRANSFER, CONFERENCE, HOLD, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE,
VOLUME+, VOLUME –
Voice
Codec
Support for G.729A/B, G.711µ/a-law, G.726, G.722 (wide-band), and in-band and out-of-band DTMF (in audio,
RFC2833, SIP INFO)
Auxilia
ry
Ports
RJ9 headset jack (allowing EHS with Plantronics headsets)
Teleph
ony
Feature
s
Hold, transfer, forward, 4-way conference, call park, call pickup, shared-call-appearance (SCA), bridged-line-
appearance (BLA), downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 500
records), customization of screen, off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot desking,
personalized music ringtones and music on hold, server redundancy and fail-over
HD
audio
Yes, both on handset and full-duplex handsfree speakerphone
Base
Stand
Yes, allow 2 angle positions
Wall
Mount
able
Yes
QoS Layer 2 (808.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Securit
y
User and administrator level passwords, MD5 and MD5-sess based authentication, AES based secure
configuration file, SRTP, TLS, 802.1x media access control
Multi-
langua
ge
English, Arabic, Chinese, Croatian, Czech, Dutch, German, French, Hebrew, Hungarian, Italian, Japanese, Korean,
Polish, Portuguese, Russian, Slovenia, Spanish, Turkish , Catalan, Ukrainian
Upgrad
e/Provi
sioning
Firmware upgrade via TFTP/HTTP/HTTPS/FTP/FTPS, mass provisioning using TR-069 or encrypted XML
configuration file
Power
&
Green
Energy
Efficien
cy
Universal power adapter included: Input:100-240 VAC; Output: +12VDC, 0.5A;
Integrated Power-over-Ethernet (802.3af)
Physica
l
Dimension: 193mm (W) x 211mm (L) x 84.5 mm (H)
Unit weight: 0.78kg
Package weight: 1.3kg
Temper
ature
and
Humidi
ty
32-104 / 040, 10-90% (non-condensing)

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