This system is V9 3550 and I have and IVM card that does not answer with a voice. I deleted the EVM ports software looks good I can see the card in the map and when you call an extension in the group it rings in connects but no voice. This is a new install did i miss something on the initial boot up all Open stage phones work with no problem. Any ideas. BTW if I delete the IVM ports and put the EVM ports back the EVM answers.