[asterisk-users] sip.conf - sort order, does it matter

[Joseph]

Does the sort order matter in sip.conf file?
I know sort order might effect:
allow=ulaw
allow=alaw

but does it matter where I place: insecure=invite ?

The reason I'm asking is that I've loaded almost two identical (sip.conf and extension.conf) files on the same asterisk server and with one set 
   insecure=invite is working correctly.
When I load the second set of dial plan (sip.conf and extension.conf) insecure=invite is not taking effect.
I get:
"... username mismatch, have <4>, digest has <pstn-4444>
handle_request_invite: Failed to authenticate user "KMIEC J"

Someone have mentioned that sort order in sip.conf might effect the way it works.

-- 
Joseph