2. A system as in claim 1 wherein potential destinations are either email clients or telephones.
1. A system for aiding transaction routing of at least emails, text and telephone calls, comprising: a data repository storing information about potential destinations for a transaction, including at least destination identity and availability at each potential destination; and router software; wherein the router software, in response to a transaction to be routed, determines potential destination identities and availability for receiving the transaction at each potential destination identity, based on the information stored.