When this site was developed in 1996, most mail programs did not have provisions for carrying extra information such as phone and fax number in their address lists. Because of very low demand, I have no plans to add the feature. For third party solutions, Windows users can support this site by purchasing Address Magic Personal Edition , which converts all contact data and distribution lists for supported formats. Some of the utilites in Maibox Conversion, Other Utilities, and Links to Other Useful Sites do these conversions.