asterisk users - Jul 2005 - How to start with SER and Asterisk?

It is on my list for several months ;-(

I want to have on my asterisk box also SER installed in the first step, 
whereby SER is nothing doing than just use Asterisk, if a feature of 
Asterisk is required.
Calls from a phone to an ENUM phone number, or from sip to sip phone 
should not bother asterisk.

Has anybody set this up, ...

I understand that SER is only for SIP, is there a counterpart for IAX?


bye

Ronald