I have never owned or tried one of these so the questions are basic. I'm talking about the dual transceiver devices which can accept comms from both sims at the same time.

Does the phone software --

- indicate which SIM a message is from?
- send messages via the correct SIM when replying?
- provide the ability to disable (turn off) one SIM?
- have a timing/schedule function to disable a particular SIM between the hours of x and y on day z ?

A few years back only the small unknown manufacturers were providing these phones but now the major players are doing the same.