【正文】
ion)AP M (A ct io n = Conne ct Forw a rd plus notif ication)BICC BICCBCF N(z)( y )“ AAA”ISUP ISUPACMANMAP M ( Tunn el data )(x )AP M (A ct io n = Conne ct ed )AP M (Tunne l data)AP M (Tu nnel data )AP M (A ct io n = Conne ct ed )AP M (Tunne l data) CSF NBCF N BCF RISN ABCF RCSF TTSNSWN 1 SWN 2IAM (Ac tion = Conn ect Bac k w a rd) , ( B NC c hara ct eristi cs)IAMACMACMANMANMBCF R BCF RCSF NBCF NISNBSWN 1 SWN 2IAM (C O T on previo us) , (Act io n = Connec tBa ck w a rd) , (BNC chara ct eris tic s)ACMANM“ BBB ”CO TAP M (Tunne l data)AP M (Tunne l data)BICC BICCBCF N(z)( y )“ AAA”ISUP ISUPACMANMAP M (Tu nnel data )(x )AP M (Tunne l data) CSF NBCF N BCF RISN ABCF RCSF TTSNSWN 1 SWN 2IAM (Ac tion = Conn ect Forw a rd) , (BNC c hara ct eristic s) Bearer Se t up r eq . (B NC ID=y 1 ), (BIW F Ad dr=y)Bea rer Set up reqBea rer Set up Conn ectBea rer Set up Conne ctBea rer Set up Conn ectIAMACMACMANMANMBea rer Set up reqBCF R BCF RCSF NBCF NISNBSWN 1 SWN 2IAM (C O T on previo us) , (Act io n = Connec t Fo rw a rd) ,(BNC c hara ct eristi cs) Bearer Se t up r eq . (B NC ID= z 1 ), (BIWF Addr= z)Be