![VoIP Switches to Callbox Gains High Value Sales Appointments [CASE STUDY]](https://www.callboxinc.com/wp-content/uploads/2019/02/CS_SW_VoIP-Switches-to-Callbox-Gains-High-Value-Sales-Appointments.jpg?x38162)
VoIP Switches to Callbox, Gains High-Value Sales Appointments
A lot can happen in 12 weeks. For this US-based VoIP company, a 3-month Callbox campaign marked a complete turnaround in its marketing results, which had been underperforming for years. In a single campaign, Callbox put the Client on track to exceed its funnel growth targets.