One of the problems with buying international VoIP termination is that its almost impossible to control what the called party will see as the caller ID. This is because there are many intervening carriers involved in most international calls, and each carrier may have reasons for obscuring or re-writing the ANI of the original caller. However, there are a few carriers that are able to gurantee ANI delivery on certain international routes. They can do this because they have special relationships with the last-mile carrier in the target country. However, it can be very confusing to decipher which carriers are able to support ANI delivery, especiually since the situation may change from time to time.
grnVoIP has a solution. We have gone to the trouble of identifying those carriers with the capability to deliverr ANI to specific destinations. And, we have used this information to create a single Premium route that will provide ANI delivery to more than 100 international destinations. We expect to go live with this service soon. See the grnVoIP website for more details.