Gb message sequence chart: flip sides (SGSN should be right)
... also, re-word some of th labels for more clarity
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@ -1,12 +1,12 @@
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msc {
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hscale="1.2";
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sgsn [label="SGSN"], pcu [label="PCU"], bts [label="BTS"], bsc [label="BSC"];
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bsc [label="BSC"], bts [label="BTS"], pcu [label="PCU"], sgsn [label="SGSN"];
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|||;
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bts box bsc [label="A-bis connection"];
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bts box bsc [label="A-bis OML connection"];
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pcu <: bts [label="Config. parameters"];
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pcu rbox pcu [label="listen on UDP socket"];
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pcu note sgsn [label="send to SGSN UDP (port 23000)"];
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pcu rbox pcu [label="bind/connect UDP socket"];
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pcu note sgsn [label="NS-over-IP (UDP port 23000)"];
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pcu => sgsn [label="NS RESET"];
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pcu <= sgsn [label="NS RESET ACK"];
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...;
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