As we thought No more equipment Run the doomsday, and with it comes another one.This time it’s one Subtitle call Telephone, a landline phone with a built-in voice-to-text system, designed to help people with hearing loss. You can get one from the U.S. government for free, so naturally there is a booming second-hand market, which costs almost no money. They are surprisingly powerful, as aggressive FPS players (and deep-rooted tinkers) Joshua Max Find.
Run DOOM on landline phones-https://t.co/0Gf5wygjLz pic.twitter.com/oKUz7ejxGIAugust 12, 2021
Inside CaptionCall’s humble charcoal gray exterior, hidden a quad-core ARM 7 i.MX 6 SoC, 1GB DDR3 and 4GB NAND flash memory. These ARM cores are Cortex A9, and the only quad-core i.MX 6 model runs at 1.2 GHz. There is a Vivante GPU with four shaders and a speed of 594 MHz, which is sufficient for dual 1080p decoding.
CaptionCall runs a form of Linux, but its ports are well protected because Joshua Max pointed out When he runs a port scan. A UART port was found inside, which led him to the system console login prompt, but the root password was not obvious. There is a complete explanation on Joshumax’s blog, explaining how he cracked the password, dumped the kernel, extracted his ramdisk and started running Debian.
From there, by getting audio and Bluetooth to work (although not a touch screen, thanks to a bug), this is an obvious step to run Doom on the 7-inch screen of the phone.If you want to try it yourself, his code is in GitHub.