Email received on January 30, 1998 From: Bruce Clay <bclay@us.ibm.com>


This is to advise the IETF that IBM is willing to grant licenses under our
patents which may be applicable to  the calendaring and scheduling (C&S)
standards being developed in the IETF. This would include the  IBM patent
#5428784, Method and Apparatus For Linking Electronic Mail And An Electronic
Calendar To Provide A Dynamic Response To An Electronic Mail Message.

In this regard, if implementations of the C&S specifications from the CALSCH
committee infringe patents issued to IBM, IBM agrees upon written request to
grant a non-exclusive license under such patents on a nondiscriminatory basis
and on reasonable terms and conditions. Written requests for licenses may be
sent to :

 Director of Patent Licensing,
 IBM Corp.
 North Castle Drive, Armonk, N.Y., 10504