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*ast 521 Business IP Phone [Non POE]

*ast 550 Business IP Phone with POE

Quick Overview


  • 2 SIP accounts IP Phone with POE

  • 2.8′ 320×240 TFT LCD display

  • 4 programmable keys

  • Gigabit WAN/LAN

  • 3-way conferencing

  • Support all major SIP IP PBX/ Soft switches/ IMS platform


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*ast 550 is a Gigabit IP phone with high performance specially designed for enterprise. It features a 2.8' 320x240 TFT LCD display, supporting 2 SIP accounts, HD voice, BLF autoprovision to render a user-friendly experience.

Technical Specification

Display 2.8' 320x240 TFT LCD
Key features 2 SIP accounts, Hotline, Phonebook (local up to 500 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,  Speed dial, Support switching SIP server and second server, Message waiting indication LED, Ring tone selection, Black list, Multi language compatible, supports POE
Wall Mounted supported
QoS Supported
Power Efficiency

Power Input: 100 to 240 ACV
50/60Hz Output: 5 DCV 800mA


Net weight: 680g (base unit & handset)
Dimension: 210 x 170 x 45 mm

Humidity 5%-95% non-condensing


Additional Information

Manufacturer *astTECS
Country of Manufacture
  1. Great Product... Excellent Voice Quality review by Gopi Pandra on 8/23/2021
    Overall Rating

    I'm using asttecs phone for more than a month. Voice and call quality with voip connection is great. It supports two sip accounts. Once configured, easy to use..speakerphone is amazing. Best product for home office. Works on LAN cable.

  2. overall very good. review by Shanmukh on 8/16/2021
    Overall Rating

    Both hardware and technical assistance is very good

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