sip-isup call flow query This topic has 0 replies, 1 voice, and was last updated 13 years, 3 months ago by divi. Viewing 1 post (of 1 total) Author Posts 3rd August 2011 at 10:06 #66875 diviGuest hi all, in a sip -isup call flow, invite is sent to the MSC. Now how does the MSC find out the terminating ISUP end send point and send out an IAM to it ?? please clarify Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.