[asterisk-ss7] SIOS vs SIO

[TCB]

I have the a problem testing libss7 w ss7linktest . I receive SIO from Telco
and Send back SIOS , i this
this right , a quick check on ITU Q.781 - 1.4 shows me

PURPOSE: To check "Aligned ready" Timer T1 and "Proving period" Timer T4
(Normal)
PRE-TEST CONDITIONS: Link out of service
EXPECTED SIGNAL UNIT SEQUENCE:
        SP      B                                           SP        A
Link                                                   Link
                            <------------------------- 1–0     SIOS
1–0     SIOS                ------------------------->
                                                            :  start
                            <------------------------- 1–0     SIO
1–0     SIO                 ------------------------->
                            <------------------------- 1–0     SIN
1–0     SIN                 ------------------------->
                                                                   T4 (Pn)
                            <------------------------- 1–0     FISU
                                                                   T1
                            <------------------------- 1–0     SIOS


root at ss7:~/libss7-trunk# ./ss7linktest 1 itu 27 1
Starting link 1
Link state change: IDLE -> NOTALIGNED
Len = 4 [ ff ff 01 00 ]
FSN: 127 FIB 1
BSN: 127 BIB 1
>[0] LSSU SIO

Len = 2 [ ff ff ]
FSN: 127 FIB 1
BSN: 127 BIB 1
<[0] LSSU SIOS

Link state change: NOTALIGNED -> NOTALIGNED
Len = 4 [ ff ff 01 00 ]
FSN: 127 FIB 1
BSN: 127 BIB 1
>[0] LSSU SIO

Ideas ? !

-- 
TC
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