For your enterprise clients, you need perfect support for both T38 and G721
You need to be capable of handling routing for millions of DIDs
You need to be able to calculate cost for Toll Free calling based on ANI and
For your clients, you need to provide a fully featured self-service portal for
your clients to select and buy DIDs, check DDR, and reports
You need to be able to rate and route calls based on US jurisdiction.