I’ve used SER and now OpenSER (uhhm, Kamailio) for the sip proxy and cdr generation (along with media proxy and cdrtool) and Asterisk as the ivr piece for years.

Using a proxy like OpenSER/Kamailio to front your IVR servers is your best bet. 

The combination has worked extremely well for me.

- Darren

--
www.darrensessions.com


On 7/28/08 6:52 PM, "Rana Dhekial" <dhekial@msn.com> wrote:

Hi,
 
We have a requirement to build a prepaid system using OpenSER. I took a look at CDRTool which looks quite promising. But I am not sure how to build  the Call control module and  provide IVR type information to the end users.
 
If any one has done similar type of job, please respond.
 
thanks,
 
Rana

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