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*ast 521 is entry level Phone with 2 SIP account with integrated POE . The ergonomically designed phones are equipped with essential features that the mordern business environments demand and suitable for small & medium businesses. It fully supports all the major SIP based IP PBX / softswitch/IMS platform
|Display||2.3″ Dot-matrix screen|
|Key features||2 SIP accounts, Phonebook ( upto 600 entries). Call history: dialed/received/missed; Call hold, call waiting, call forward, call return, Call transfer, Caller ID Display, Fast redial, Phone mute, DND, Auto anawer, 6 ways conferencing, Speed dial,Message waiting indication LED, Ring tone selection, Black list, Multi language compatible, hands free indicator|
|Protocols||SIP2.0 over UDP/TCP/TLS, RTP / RTC P/ SRTP, STUN,DHCP, IPv6, LLDP, PPPoE, 802.1x, L2TP. Open VPN, FTP/ TFTP, HTTP/HTTPS, TR-069, AES128 & AES256|
DC Power Input: 5V/0.6A
|Physical||Net Wt: 0.9 Kg ,
|Compliance||CE, FCC, RoHS|
Voice quality is excellent!
Something worth for the money.
Really Value for Money and the call quality is also good
From pricing to quality it got everything that you expect from it.
Really really value for money, performance is very good, sound quality, voice quality is awesome. Overall very easy to use. Looks-wise is also very good. Recommended to all
Nice Phone. It is value for money. Appreciate the on-time delivery