CallSpark

The product is a browser-based international calling service that lets users make and receive phone calls to 190+ countries without apps or contracts, addressing high carrier costs, hidden fees, and poor call quality. It sells to individual consumers and to businesses of all sizes that need to contact clients, banks, or government offices abroad. It is delivered as a pay-per-minute service accessed directly in the browser with upfront pricing, smart routing for HD audio, virtual local numbers, and custom caller ID.

Key features

• Browser-based international calling
• Call 190+ countries
• HD-quality audio with smart routing
• Buy virtual local numbers
• Receive calls in browser
• Custom verified caller ID
• Transparent per-minute pricing
• No apps or contracts required
• Pre-call cost calculator