What is the wholesale voip ?

Wholesale terminology

Origination

This is the service that actually carries the call for your customers. The wholesaler's infrastructure originates a call from the public switched telephone network by routing it to their own Telecom center, where it is sent out over the Internet.

Termination

Call termination refers to where the call is being sent to, and this is the IP endpoint. Ideally, your wholesaler will have multiple points of presence in many countries. For example, when a US caller is calling London, the call goes over the PSTN only from the destination to the provider's point of presence, then goes overseas via Internet, to another point of presence near London, where it is transferred back to the PSTN for final delivery.

Toll free service

Many of the wholesale providers also offer toll free services, which are increasingly affordable. DIDs (direct inward dial numbers) can be sold to your customers easily; wholesalers often will have immediate access to a database of numbers that can be immediately provisioned. Local DIDs are available as well as toll-free DIDs, which can be routed to your customer's IP address or PBX.

International A-Z

For entrepreneurs looking to provide customers with international calling capability, so-called
"international A-Z" service provides termination points in multiple countries. This is particularly
important for resellers who wish to either specialize in providing calling service to specific countries, or broader offerings that offer calling worldwide.