Dear anyone,
Can you help? 
When you try to access voicemail, all the tones emitted by each number are the same. As a result, 1 sounds like 2 and 2 sounds like 3 etc.
The telephone voicemail box therefore can't recognise, whether you are trying to "press 1 to listen to your messages" or "press 5 to hang-up" etc.
Have mailed tech support 3 times - no answer. Anyone know more than NCH about this? 
Thanks and greetings from Ireland (bbrrrrrrr)