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+digraph G {
+ rankdir = LR;
+ BTS -> BSC [label="Abis"];
+ BSC -> OsmoMSC [label="3GPP AoIP"];
+ OsmoMSC -> OsmoMGW [label="MGCP"];
+ BSC -> OsmoMGW [label="RTP",dir=both];
+ OsmoMSC -> OsmoSIP [label="MNCC"];
+ OsmoSIP -> PBX [label="SIP Trunk"];
+ OsmoMGW -> PBX [label="RTP",dir=both];
+ {rank=same OsmoMSC OsmoMGW}
+ OsmoSIP [label="osmo-sip-connector"];
+ OsmoMGW [color=red];
+
+ hNodeB -> OsmoHNBGW [label="Iuh"];
+ OsmoHNBGW -> OsmoMSC [label="IuCS"];
+ hNodeB -> OsmoMGW [label="RTP",dir=both];
+}
personal git repositories of Harald Welte. Your mileage may vary