Problem with credential - error 401

Hello everyone,

I allow me to explain my problem.

During a call from my OXE to the SIP trunk, there is a SIP trunk authentication with credentials.

This works well, except on some calls. When transfer most often.

I check the acmelog and log.sipd, an error credential is present.

Jun 19 10:29:44.634 sipd01@sbc: MINOR SipClientTrans::new_auth_client_trans:3780: INVITE 799874258 B<C-Initial>: [Error] failed to send request w/credentials; rc = 513

Someone would have any idea why this call does not work?

I enclose an extract from acmelog / log.sipd and a trace of a call.

Thnaks,

Romain