1. A conferencing method comprising: receiving first conference-endpoint data for a first conference type from a first endpoint; reading a conference type identifier from a memory, the conference type identifier specifying a second conference type for a second endpoint participating in a conference with the first endpoint; selecting a conversion program based on the second conference type; initiating execution of the conversion program on the first conference-endpoint data to prepare converted first conference-endpoint data compatible with the second conference type from the first conference-endpoint data; and transmitting the converted first conference-endpoint data to the second endpoint.