The service allows you finding out who has called you, when the telephone line was busy, switched off or was outside the zone of coverage. By doing so, it ensures that an important call will not be missed.
Osool Telcom Solutions, Inc. strives to make VoIP more mainstream by helping VoIP service providers prepare for the challenges that are just now emerging on the horizon.
Osool helps them do this by enabling them to outsource their complete VoIP back-e