Are dispatch messages the only messages being delivered by Message Exchange?
No, the facility will be able to send/receive text messages for the recording/notification of abnormal operating conditions or contingencies. • How does the Message Exchange module located at a participant site deal with telephone or fax messages? The Message Exchange module located at the participant site does not deal with telephone or fax messages. The use of fax or phone is viewed as stand alone and used for emergencies only (i.e. failures of the dispatch message facilities). • Are both ICCP and Web-based clients supported? Yes, the existing message exchange function makes use of the ICCP Block 4 capabilities to send dispatch instructions. However, as this may be cost prohibitive for some market participants, the IESO has committed to provide a Web-based message exchange using the https protocol as an alternative to the ICCP. For additional information on Web-based Message Exchange, see the Dispatch Message Exchange section in the PTRM on the IESO website at: www.ieso.ca/imoweb/pub
