Avaya Session Manager 6.x

[sly1972]

I have a strange problem on a session mananger. After you set up the SIP Entity on MS, which is working.
I created a sip station, which should log in through a OneX Com
But the trace of the SM I always get the same message:

--REGISTE-> sip:750011@DOMINIO.it Exp:900
Remote host is not trusted | Host not trusted
Registered contact | Handle: 750011 Domain: DOMINIO.it
Using Session Manager Location | Location: Laboratorio
Originating Location found | Location: Laboratorio
<--Unautho- | (3) 401 Unauthorized
--REGISTE-> | (3) sip:750011@DOMINIO.it Exp:900
Remote host is not trusted | Host not trusted
Registered contact | Handle: 750011 Domain: DOMINIO.it
Using Session Manager Location | Location: Laboratorio
Originating Location found | Location: Laboratorio
Trying to Authenticate | User: 750011 Realm: DOMINIO.it
Authorization failed |
14:53:11,170 <--Unautho- | (3) 401 Unauthorized (invalid response)

someone has an idea of the error? The PSW is certainly correct as the station
thanks