I have had IVM running for many years on a Dialogic card but it is time to move on to something more modern.
However I would like to have UK (BT) caller ID working. This uses a different system from what is used by the US (and in the UK by cable operators). It sends a line reversal followed by a burst of tones, before starting the ringing. The ancient Dialogic could support this, but few modems do.
Does anyone know of an up-to-date board which works with IVM and supports UK caller ID?
Thanks