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Sindhu Prabhu

Sindhu Prabhu is a marketer with more than five years of experience who has published over 110 articles on the CallHub blog since 2021. Her work covers SMS and peer-to-peer texting, 10DLC trust scores, TCPA compliance updates, and calling programs for labor unions, advocacy groups, and political campaigns. She also explains CallHub product releases, such as the call center mobile app, for the teams that use them. Her articles focus on keeping outreach compliant and messages reaching supporters.

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How to Get Mass Texting for Unions Right: 5 Proven Tips for Locals
Trade Union

How to Get Mass Texting for Unions Right: 5 Proven Tips for Locals

Text messaging for unions usually lands on a local union's agenda the same way. Someone at…

Oct 5, 2026 · 14 min read
Types of Unions and The Most Popular Union Organizing Strategies
Trade Union

Types of Unions and The Most Popular Union Organizing Strategies

Participation in unions has continuously declined for years. In 1983, unions represented around 1 in 5…

Nov 18, 2025 · 10 min read
Mobilize the Workforce: How You Can Use Calling for Unions
Trade Union

Mobilize the Workforce: How You Can Use Calling for Unions

Union organizing has entered a new era, and ‘calling for unions’ is at the center of…

Nov 6, 2025 · 18 min read
Strategic Collective Bargaining: Mastering the Art of Negotiation
Trade Union

Strategic Collective Bargaining: Mastering the Art of Negotiation

In 2016, the major media companies dominating the film and television industry, including CBS, Comcast, Disney,…

Jan 12, 2024 · 10 min read