Did you know you can make voice calls from Gmail? It’s a feature you may not use a lot, but could help you out in a bind.
To toggle the settings for voice calls, head to the Settings page in Gmail, and then choose “chat” from the row of tabs at the top of the page. Then next to “call phones” choose which setting you prefer.
You’ll need to add credit – the calls aren’t free – but they can help you out when necessary.