Definition & Meaning of "dog and bone"in English

What does "dog and bone" mean in Cockney rhyming slang?

The structure uses the rhyming pair "dog and bone" to stand for "phone," following the typical Cockney pattern of replacing a word with a phrase that rhymes with it. It is used in Cockney rhyming slang (London, UK) to mean a telephone, often shortened to just "dog." People typically say "Get on the dog and bone" or "I'll give you a call on the dog." The term originated in early to mid 20th century London East End rhyming slang culture, and remains a classic, widely recognized example.