The figure shows the high-level flow in and out of Services Gatekeeper.
There are three small boxes across the top labeled App1, App2, App3.
App 1 is connected by a down arrow to the text "SOAP Web Services".
App 2 is connected by a down arrow to a smaller box labeled "Oracle Service Bus".
App 3 is connected by a down arrow to the text "RESTful Web Services".
The "Oracle Service Bus" box is connected by a down arrow to a long box labeled "Oracle Communications Services Gatekeeper" that spans the whole graphic.
The "Oracle Communications Services Gatekeeper" box has two down arrows.
The left arrow points down to a small box containing the label "Traditional Network". This box also contains three smaller boxes labeled "MMSC", "SMSC", and "Call Control".
The right arrow points down to a box containing the text "SIP" and "OCCAS".