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/pubs/ptrm/ptrm_ptrmManual.pdf or the Web-based Message Exchange Guide at: www.ieso.ca/imoweb/pubs/usrGuides/Web-MessageExchange_sysUserGuide.pdf • Can a market participant opt for ICCP-based or Web-based dispatch messaging at his/her own discretion? Yes, the market participant can choose either of the two alternatives. However, since the ICCP based dispatch message exchange may be cost prohibitive, smaller participants may find it more economically viable to choose the Web-based message exchange. • Is the intent that a market parti
