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. First make sure that numlock is on, Then press and hold the ALT key, While keeping ALT key pressed type the code for the symbol that you want and release the ALT key.

✆☎☏📱 Phone symbol (copy paste telephone call emoji)

Telephone emoji is the Snapchat 🏆 Trophy, 🔓 Unlocked after successful verification of the phone number in the Settings section. Copy and Paste: Tap to copy → ☎️

Copy the telephone symbol in the above table (it can be automatically copied with a mouse click) and paste it in word, Or Select the Insert tab. Select Symbol and then More Symbols. Select the telephone symbol tab in the Symbol window.