Unaccepted calls

Most automated dialer software(s) are only checking for the attempts made, not the inbound activity. Especially if the caller dials in from a different number, it would be difficult to manage the connection(s) made to a caller. The best practice I have seen is to have a unique Identifier link the caller to the call being made via the CRM you are using to drive the activity and do a data dip to that crm for any and all inbound/outbound activity.