@startuml title Connections Request Response !pragma teoz true group 1st Connection request {start} ACS <-> CPE : HTTP GET/POST ACS <-> CPE : HTTP 200 OK end group 2nd Connection request ACS <-> CPE : HTTP GET/POST ACS <-> CPE : HTTP 200 OK end group 3rd Connection request {end} ACS <-> CPE : HTTP GET/POST ACS <- CPE : HTTP 503 service-unavailable end {start} <-> {end} : 10 seconds Interval @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art