[OpenSIPS-Users] Use Opensips for wholesale sip trunking

[Gary Chen]

I am new to Opensips. I'd like to setup Opensips as wholesale sip trunking switch. Here is what I want to do:
1) For incoming calls from carrier. Check called number and determine which IP (customer PBX IP) to forward to. Which module should I use to do this? (carrier routing, droute or something else?). I need to have every customer DID in the database to determine which IP to send call to. Can I do this with Opensips? Example will be great.
2) For outgoing calls from customer PBX. Check the customer PBX IP. If  it is in our database, forward the call our carrier gateway. If the IP is not in our database, reject it. Which module should I use for this ?
3) log all the CDR for billing purpose. Do I need to have RTP going through our to do the accurate accounting? I'd really like to not have RTP going through our server. This will save a lot of bandwidth.

If you  can show me the real configuration file that will be great.

Thanks advance.

Gary

 

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