Now, the issue is whilst all 3 can be present in a single copy of the header, having multiple Call-Info headers can lead to them being ignored by the phone or crashing it entirely.

My question is is there a way to do what I'm trying to do? I notice there's an extra data field that in the source that is prepended to the string so is there perhaps a way to set that data? Or is a better approach to abstract this header entirely, making it a hash or list we can add to at will?

Kind regards,