| Voicemail Marketing |
| Due to the ubiquity of email marketing, and the expense of direct mail and telemarketing, voicemail marketing presented a cost effective means by which to reach people directly, by voice. Abuse of consumer marketing applications of voicemail marketing resulted in an abundance of "voice-spam", and prompted many jurisdictions to pass laws regulating consumer voicemail marketing. Source: en.wikipedia.org/wiki/Direct_marketing |
