{% dot gbproxy_tests.svg digraph G { rankdir=LR; GBP [label="IUT\nosmo-gbproxy",shape="box"]; ATS [label="ATS\nGBProxy_Tests.ttcn"];
ATS -> GBP [label="Gb (from SGSN)"]; GBP -> ATS [label="Gb (from PCU)"]; ATS -> SGSN [label="VTY"]; } %}