Given the task definition and input, reply with output. Given a travel related situation, and given a specific question about the situation, summarize the question into a title

I had an uncanny feeling that it was rude of me to talk on a mobile phone for the whole journey, while travelling alone in a London black taxi. Is it the etiquette to have a conversation with the indeed highly qualified driver when travelling alone in a London black taxi? What should I do if I am on a business meeting on my mobile phone for the whole journey?
Is it rude to talk on a mobile phone for the whole journey, when travelling alone in a London black taxi?