Here are some of the pbxnsip call recording options:
-Able to record one extension, several or all
-Able to decide if recording on if incoming, outgoing, queue…Very granular
-Very flexible call recording name & location options
-Allow recording compression or not
-Have an email sent if there is a new recording
-Setup on demand recordings that can be started by a star key or snom record button!
-On demand recording show up in the user web portal and can be listened to from handset in voicemail menu
This is just one example of the breadth and depth of features and configurability in pbxnsip.