Subject: [sipcore] SIP Authentication Mechanism in Intra-Domain

From: Couret Tabt <[email-masked]>
Date: Wed, 20 Jan 2010 22:46:37 +0900

Dear folks,

I have a question below:

Do you know SIP Authentication Mechanism in Intra-Domain
except for using  REGISTER.
REGISTER is used in user registration at first time,
but this mean more frequent receiver authentication as using
at every INVITE. It is used to prevent spoofing of a receiver.

Do you know Intra-Domain (especially Receiver-side domain)
Authentication Mechanism in SIP?
If you know it, please let me know and  is it appropriate that
I post this type of topic to this mailing list?

Thanks,
Tabt