Support sending empty messages (empty body - remove minimum amount of 1 char)

[s256]

My phone provider (o2) asks me to send an empty text message to one of their service numbers (56656) to retrieve infos.
Unfortunately that is not possible with httpsms right now. I get The content field must be minimum 1 char.
Is there a technical limitation/spec why empty bodies are not allowed?
Otherwise I would like to propose this as a feature request.

[AchoArnold]

@s256 How do you send an empty SMS on your mobile phone?

[s256]

yep. fair. neither iOS nor Android support it. And I assume old clamshells wont either. I'm closing the issue.

[AchoArnold]

I also just edited the code to send an empty SMS and it fails on the android phone. java.lang.IllegalArgumentException: Invalid message body