'phone
From Hull AWE
You may see this spelling in older texts, with an apostrophe used to show that the word telephone has been shortened. Until well into the second half of the twentieth century, it was the orthodox way to write telephone, both as noun and verb. It was used for both the noun and the verb. AWE's advice is that you should not use the older form: in current English, in Britain, the unpunctuated clipping phone is the norm - although younger speakers increasingly use the more American verb call in place of their parents' ring.
See archaic contractions, 'bus, 'plane.