"We need server to server scheduling between dissimilar systems - we have had client to server scheduling for a long time"

Scheduling a meeting between co-workers on a single calendaring system has been available for a long time, but trying to schedule with people on different calendar servers has only be available by hooking it onto emails. iSchedule provides a system-independent server-to-server mechanism to allow inter-system scheduling and ultimately "ad hoc" scheduling - the ability to schedule a meeting or appointment with anybody with a calendar and a calendar server, regardless of what system they are on.

Details: TC ISCHEDULE