1 建立信令連接(NCC)
NCC:<signalling link number>:<external PCM-TSL>,<link
bit rate>:BCSU,<unit number>:<parameter set number?(有幾種選擇0是其中一個)>;
ZNCC:0:32-31,64:BCSU,0:0;
2建立本地信令點碼(NRP)
NRP:<signalling network?(是不是名字都一樣>,<bsc signalling point
code>,<bsc signalling point name>,SEP:<ss7
standard>:<number of spc subfields?>;
ZNRP:NA1,#BSC_SP#(30AC),#BSC_SP_NAME#(SMBSC44),SEP:ITU-T:1;
3 建立發(fā)射信號連接點(NSC)
NSC:<signalling network>,<msc signalling point
code>,<msc signalling link set name>:<signalling linknumber>,<signalling link code>;
ZNSC:NA1,#MSS_SP#,#MSS_SP_NAME#:0,0:::;(??)
4 添加連接到發(fā)射信號連接點(NSA)
NSA:<signalling network>,<msc signalling point
code>,<msc signalling link set name>:<signalling linknumber>,<signalling link code>;?
(怎么定的是從1-。。。)
ZNSA:NA1,#MSS_SP#,#MSS_SP_NAME#:0,0;
5建立發(fā)射信號通道(NRC)
NRC:<signalling network>,<msc signalling point
code>,<msc signalling point name>,<parameter set
number>,<load sharing status>,<restriction
status>:,,,0;?(最后那約束狀態(tài)是什么)
ZNRC:NA1,#MSS_SP#,#MSS_SP_NAME#,0,D,:,,,0;
6激活發(fā)送信號連接(NLA)
NLA:<signalling link numbers>;
ZNLA:0;
7激活發(fā)送信號通道(NVA)
NVA:<signalling network>,<msc signalling point code>:;
ZNVA:NA1,#MSS_SP#:;
8改變發(fā)送信號連接狀態(tài)(NLC)
NLC:<signalling link numbers>,ACT:;
ZNLC:0,ACT
9改變通道狀態(tài)(NVC)
NVC:<signalling network>,<msc signalling point
code>::ACT;
ZNVC:NA1,#MSS_SP#::ACT;