Tim, In order to use the Exchange IM they would need a mailbox and as such they would require a CAL Mark Fugatt MCT, MCSE, Microsoft Exchange MVP Pentech Office Solutions Inc Rochester, NY Tel: 585 586 3890 Fax: 585 249 0316 www.4mcts.com www.exchangetrainer.com -----Original Message----- From: Tim Cole [mailto:tscole@xxxxxxxxxxxxxxxxxxx] Sent: Wednesday, March 05, 2003 5:50 PM To: [ExchangeList] http://www.MSExchange.org/ Hi New to the list and this question may have been answered in the past (or may be obvious but I can't find the answer) so here goes: Do you need a CAL for every client logged into Exchange Instant Messaging? Thanks Tim. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mark@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')