[KesterLester]

You might recognise the original frame, bells and solenoid of a GPO 332 (and spot a few wired heading off to the original dial), but the motherboard, LiPo batter and the rest of the electronics are/were all my work in February.

To text, I dial without lifting the receiver, and after a confirmatory "ding", then use the letters on the dial. For example: to get an A in a text you dial a 2. To get a B you dial the 2 but with the "call exchange" button depressed at the beginning of the dialling action. To get a C you dial a 2 but with the call exchange button depressed at the end of the dialling action. And to get a "2" in a text, you keep the call exchange button depressed throughout the dial action. Thus it is one dial action per letter, which is reasonable. To phone you lift and dial as you would as normal.