[Asterisk-Users] SIP protocol bug ???

[mtm spm]

Hello,

I have a problem with asterisk when dial out to a SIP
provider. 
Asterisk send a INVITE with no credentials, the
provider reply with a 401 Unauthorized.
However, Asterisk DOES NOT resend the invite again
with credentials. But it hangs there (maybe waiting
for a ok)

It is this a bug in asterisk or the provider is 
supposed to send something else rather than a 401
as answer for a INVITE ?

The version was taken 2 days ago from CVS.
TNX,
MTM

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