GSM, ISUP. SIP, H.323 and V5.2 call flow diagrams and message sequence charts can be found at:
formatting link
-- EventStudio System Designer 2.5 -
formatting link
System Design and Call Flow Modeling ToolTelecom Call Flow Diagrams
Dec 28, 2005
1 Replies
Sweet! I looked at the one for SIP and it became immediately clear why in some cases I get double ring tone. Seems my router supplies ring tone as well as opening the path to the remote switch.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required