[asterisk-users] Configuring sip.conf to allow guest access

[Richard OSS]

Hi,

I am configuring a conferencing server and need to
allow SIP clients guest access.

In iax.conf, I can allow guest access to the
[conference] context with this entry

=== iax.conf ==
[guest]
type=user
host=dynamic
context=conference

====

So anyone connecting without username/password will be
logged in as guest and restricted to the conference
context.

How can I do the same in sip.conf?
How do I also configure my xlite client to login as
guest?

How to configure IAX is explained here
http://www.voip-info.org/wiki/index.php?page=Asterisk+config+iax.conf

but not for SIP.

http://www.voip-info.org/wiki-Asterisk+config+sip.conf

Thanks in advance.