Documents that link to "Make calls and access voicemail on Firefox OS" Add, manage and share contacts (en-US) Firefox OS User Guide (en-US) Firefox OS Documentation (en-US) What's New in Firefox OS? (en-US) How to make a call (en-US) The call log won't finish loading (en-US) Firefox OS for Support Forum Contributors (en-US) Dual SIM cards (en-US)