When HN users recommended it
1 HN user recommended this in 2015, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2015, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
As others have pointed out, this has been done many times before. There's even a commercial product to pair an analog phone to a Bluetooth cell phone.[1] It generates proper ring voltage and dial tone, and a fast busy tone if it lacks a connection to the phone system, so it does the whole job of emulating land line.
We have one of those in our steampunk telegraph office[2], connected to a 1970s Singapore-made imitation of a 1930s French phone equipped with a Japan-style telephone plug. It's popular with small children. ("It's so heavy!")
[1] http://www.amazon.com/Xtreme-Technologies-BT-Bluetooth-Gatew... [2] https://vimeo.com/124065314