Tap the 1/2 for more symbols. Takes about 5-10 minutes to set things up, but you'll be typing like a boss. Mobile Phone 📱 ℡ Telephone Sign ℡ How to use. You can hold one of the alt keys and type the numbers using number pad on your keyboard. All the info you need on cool text characters is here. How to invoke constants badly Safe Navigation Operator (?.) Plus, the Dashboard Symbols app holds over 100 of the most common symbols. // These telephone symbols are unicode characters, you can use them with the codes in table in a html or copy paste in a text document. The reason they change location from PC to PC is quite simple: The @ and ” symbols are interchanged on USA vs UK keyboard layouts hence the mix-up.