I know there are a number of reasons why a business should use your own advertising as MOH but as Quadro is a replacement to most if not all conventional systems what solution or plan is there from Epygi to address this? Essentially a couple of clients have asked for this facility as a button to play off their phone and as a MOH. Any advice welcome. In our installed base we exclusively use Aastra 5 series and the former 9133 etc. Thanks/Lee