![]() Plum Voice Plum Voice (also known as The Plum Group) is a communications technology company that specializes in interactive voice response (IVR), call routing, messaging, and voice conversations. | ![]() CallTower CallTower is a company that provides unified communications, contact centers, and collaboration solutions. | ![]() Altrovis Altrovis is an information technology company that provides messaging and payment solutions. | |
Founding Date | Founding Date 1999 | Founding Date 2002 | Founding Date 2011 |
Type | Type Private | Type Subsidiary | Type Private |
Tags | |||
Locations | Locations New York, US HQ Boston, US Denver, US | Locations South Jordan, US HQ South Jordan, US | Locations ID HQ |
Employees | Employees 3 | Employees 2313% increase | Employees 195% decrease |

CallTower is a company that provides unified communications, contact centers, and collaboration solutions.
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Altrovis is an information technology company that provides messaging and payment solutions.
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