Tom Baker used to be the voice used on British Telecom for a time.
Imagine accidentally sending a text to the wrong number and getting a dirty phone call from Dr. Who at 2 in the morning...
The only time this happened to anyone I know was around 2005. I sent a txt to my brother and accidentally used his landline number and he picked up the phone and a robot voice said “I left your jacket at the Grampians” and then disconnected. Such a useless piece of tech!
In Slovenia I remember having had a "smart" landline phone in ~2009 that could send and receive SMS. ISDN?