How to send text messages on a landline? Help the gods.

There is no question: can't you send it? Answer: Yes, that's a wireless landline, right? The main reason is that the service terminal does not have a landline to send short messages, but can only receive them. But soon, maybe two years. And the landline network is not perfect. But it can be sent abroad. Follow-up: I am not a wireless landline. Answer: If it is telecommunications, you can call the service hall at 10000.