[asterisk-users] No pattern 407 from SIP provider iCall

[Bruce B]

Hi everyone,

Occasionally (with no set pattern), I get *"SIP/2.0 407 Proxy Authentication
Required" *from iCall when trying to termiate to their international
gateways. I have tried direct IP termination as well as SIP register but
both just fail with above message whenever they want. Specially in register
mode where the user is registered and both userid and password are  good and
they have been good yesterday, today they fail and the next day they work.

What could be the reason?

Thanks,
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