Configuration trunk sip

Asterisk Asterisk SIP
#1

Hello my sip trunk is not working. I do not understand why.

[Jul 23 15:04:48] WARNING[15902]: res_pjsip_outbound_registration.c:1183 handle_registration_response: Fatal response ‘401’ received from ‘sip:siptrunk.ovh.net:5060’ on registration attempt to ‘sip:0033XXXXXX@siptrunk.ovh.net:5060’, stopping outbound registration

#2

<Registration/ServerURI…> <Auth…> <Status…>

siptrunk-/sip:siptrunk.ovh.net:5060 auth Rejected

Objects found: 1

#3

I think the only reason 401 would be considered fatal would be that you didn’t have a valid auth= setting for the endpoint.