curiosity teardown: wireless home phone interface

Today's teardown victim is a ZTE WF720, which is (or was) a way to connect old-school landline phones to the cellular phone network. Here's a user manual i found for this unit, if you're interested: https://www.att.com/support_static_files/manuals/ATT_Wireless_Home_Phone_WF720.pdf And here are the datasheets for the 2 main chips: qualicom chip https://www.digchip.com/datasheets/download_datasheet.php?id=1475846&part-number=QSC6270 telephony chip https://www.alldatasheet.com/datasheet-pdf/pdf/538041/SILABS/SI3210M-FT.html ----- My tip jar: https://www.patreon.com/pileofstuff My other tip jar (channel membership) : https://www.youtube.com/channel/UCRiFz3gNKE3VysarZ7nmqIA/join Buy me a coffee (or a beer): https://ko-fi.com/pileofstuff If you are OK with me getting a commission on your purchases, feel free to use my affiliate links: Ebay: https://ebay.to/33IF7PA Banggood: http://pileofstuff.ca/r/9ajsf Some other links to products may be affiliate links #ElectronicsCreators ---