Today's brand awareness-building strategies often include the use of audio marketing for various reasons. One of the key reasons why audio marketing is such an effective tool is that it allows companies to connect with potential customers on a personal level. Witlingo is one such service that can educate you on the many benefits of multicast and give you more information on what is a voicegram. To begin, the service informs consumers, marketers, and companies about existing voice-related glossaries.