Note
This is not legal advice. Only a qualified attorney can advise you on your particular situation.
It is very important to note that, just because we can monitor calls, doesn't mean we should, or even that it would be legal to do so. Many states in the United States of America are two-party or all-party states. This means that all parties to a conversation must know that a call is being recorded for it to be admissible in court.
More than that, there are privacy laws in place to protect everyone. Only a careful study of all applicable laws can tell us if we are in the clear. We should never record any phone calls until we have spoken to a lawyer.
For those of you hosting a PBX server, you might just want to play it safe and restrict call recording or monitoring. However, there are alternative solutions for those who wish to individually record conversations indepent of the Asterisk server. Counterpath softphone products such as X-Lite has a call recording option, which will...