We provide quality global voice connections by working with only the best premium voice Tier 1 carriers who themselves have direct connections with the terminating operators, partner with other suppliers that have direct connections themselves to end operators, or connecting directly to the networks.
We aim to provide CLI/Caller ID to all networks globally, unless specified. In some networks around the world CLI may be available but may not be guaranteed. You can check for known specific restrictions in the below articles: Country Specific Features & Restrictions
The details on countries that we support and price for both inbound voice, outbound voice and voice number can be found here: nexmo.com/pricing