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William Rubio

Operator

William Rubio serves as Chief Revenue Officer at CallTower, a cloud-based unified communications and collaboration (UC&C) solutions provider. In this role, he is responsible for overseeing global revenue generation, sales strategy, and channel partner development. Rubio has been instrumental in expanding CallTower's market presence and driving adoption of its enterprise communication platforms, which include Microsoft Teams, Cisco, and other leading UC solutions delivered as managed services. Rubio brings extensive experience in telecommunications, cloud communications, and enterprise technology sales to his role at CallTower. His career has spanned leadership positions focused on building and scaling revenue organizations, developing channel ecosystems, and forging strategic alliances within the communications technology sector. He is recognized for his ability to align sales teams around customer-centric growth strategies in competitive markets. It is important to note that William Rubio and CallTower operate primarily in the unified communications and cloud technology space. His expertise centers on enterprise communications, UCaaS (Unified Communications as a Service), and channel sales.

Last updated Oct 14, 2026 by the ATDb Editorial Team

Role
Chief Revenue Officer
Company
CallTower
Based
Salt Lake City, Utah, United States

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Years in industry
15 years

Bio

William Rubio serves as Chief Revenue Officer at CallTower, a cloud-based unified communications and collaboration (UC&C) solutions provider. In this role, he is responsible for overseeing global revenue generation, sales strategy, and channel partner development. Rubio has been instrumental in expanding CallTower's market presence and driving adoption of its enterprise communication platforms, which include Microsoft Teams, Cisco, and other leading UC solutions delivered as managed services. Rubio brings extensive experience in telecommunications, cloud communications, and enterprise technology sales to his role at CallTower. His career has spanned leadership positions focused on building and scaling revenue organizations, developing channel ecosystems, and forging strategic alliances within the communications technology sector. He is recognized for his ability to align sales teams around customer-centric growth strategies in competitive markets. It is important to note that William Rubio and CallTower operate primarily in the unified communications and cloud technology space. His expertise centers on enterprise communications, UCaaS (Unified Communications as a Service), and channel sales.

Expertise & education

Expertise

Unified Communications as a Service (UCaaS)Cloud CommunicationsEnterprise Sales StrategyChannel Partner DevelopmentMicrosoft Teams DeploymentsManaged Communications ServicesRevenue OperationsStrategic Alliances

Speaking topics

Cloud Communications and UCaaS AdoptionEnterprise Channel Sales StrategyMicrosoft Teams as a Business Communication PlatformManaged Services and Digital Transformation

Recognition

Notable achievements

  • Appointed Chief Revenue Officer at CallTower, overseeing global revenue and sales operations
  • Expanded CallTower's channel partner ecosystem and enterprise customer base
  • Helped position CallTower as a recognized provider in the Gartner Magic Quadrant for UCaaS