I'm thinking to setup a bridge to link a2billing with Magento eCommerce.
My idea is turning around the following.
1. Client Signing. Here i would setup an api, to send a request from magento to a2billing, when a client are singing in Magento. So with this, a client are going to get an account in magento, and in the same time a2billing are creating a SIP/IAX2 account, and send an e-mail with that data.
2. Client Frontend. I'ld add an additional chapter from where the costumer can add more credit, using magento shopping cart, and checkout options, and notify that to a2billing by addiding that purchased credit.
3. Additional parameters for the client backend, I guess will not be practical neither relevant, it could be enogh to make a direct link, as verified to the a2billin customer fronend.
The recurring service, I'ld let it in a2billing as it's to keep magento independent causing of several bugs in magento recurring profiles.
I'ld add a product in Magento, for example trunk, DID, Calling Card to allow customer to purchase that product, then when he's checking out, and creating an account, data are sent to a2billing, as step 1, and the purchased credit, are notified to a2billing. But to send the DID request to a2billing it's more difficult... no idea how...
Dose anybody have any previous experience using such as futures with magento??
Lets discus regarding that eCommerce solution, we're using magento, and i found it much more sophisticated then any other else...