sip provider config

Hello,
There are 2 documents concerning sip provider config and both are sticky.
They are very diffrent as content.
Most of the people on forum said to enter all info through web interface and one document from sticky ask for changing sip.conf and extentions.conf using an editor.
Please let me know what to use for configuring sip account provider with vicidialnow
thanks
There are 2 documents concerning sip provider config and both are sticky.
They are very diffrent as content.
Most of the people on forum said to enter all info through web interface and one document from sticky ask for changing sip.conf and extentions.conf using an editor.
Please let me know what to use for configuring sip account provider with vicidialnow
thanks