Disabling being able to make two calls at once?

[#1]

Is it possible to stop the iPhone from making two separate calls, ie when you press the "Add Call" button you can dial another number at the same time? If not, could this function be disabled at the network end?

[#2]

Hi there @dgilbert2, thank you for getting in touch!

There's currently no way to be able to stop this at network level, as this is purely dependent on the handset capabilities.

Hopefully there is someone else in here who can offer you some help, if not, I'd recommend you contact Apple directly as they will be able to help

Thank you

-Oli