graigloxton

By this time the NCH team has developed the codes to correct the IVM bug.

The only way you can add more lines or extension is by upgrading.

Sorry to say but your link for the IMS telephone on hold player software is broken. Can you please post another link. I want to see how it look like since I am planning to do the same for our phone system.

Try browsing for MagicJack's help or community forum. I am sure they have the answer to your question.

Aren't they going to make 22khz work for their IVM? I am sure this range has better quality than 8khz.