Is any license required to use text to speech with VoipNow Professional?
Yes, you must purchase at least one voice support license and a concurrency support license. The voice support license allows you to use a certain voice and the concurrency support license allows you to use the licensed voices from multiple call streams. You can check the current list of voices available on Cepstral website. The concurrency license is global (per server) and several bundles are available (for 3, 10 and 20 concurrent calls). Both the voice support and the concurrency support licenses can be purchased from 4PSA.