The UA should support digest authentication. I believe most do. There are several versions of the digest algorithm, but the most basic one with MD5, no qop etc is sufficient. The auth has the following exchange: UA -> SER: REGISTER SER -> UA: Not authorized (nonce and other auth info returned) UA -> SER: REGISTER with password hash calculated based on sip domain and nonce SER -> UA: Ok (For each registered user location, a Contact: line is added)

g-)

proson.cheng@kaisource.com wrote:

HI everyone,

I am planning to configure SER with FreeRADIUS authentication and calls accounting.

Do I need to have a RADIUS-enabled UA to use this feature properly?

If not so, How does a UA register a domain and thus proceed calling?

Many thanks.

Proson

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