What business calling platform works across desktop and mobile?

Several business calling platforms work well across both desktop and mobile. The best-known options include:

• RingCentral — strong for business calling, desktop app, mobile app, SMS, voicemail, and team features.
• Zoom Phone — good if you already use Zoom; works on desktop and mobile.
• Google Voice — simple, lightweight option for small teams and individuals.
• Microsoft Teams Phone — best if your business already uses Microsoft 365.
• Dialpad — AI-powered calling with apps for desktop and mobile.
• Grasshopper — popular for small businesses needing a separate business number.
• OpenPhone — easy-to-use business phone system with desktop and mobile support.

If you want, I can help narrow it down by:

1. team size
2. budget
3. need for call recording / IVR / call routing
4. whether you want a full VoIP system or just a business number