I wouldn't have much respect for a business that couldn't supply me with the basic tools. I have actually been in this situation in the 90s. I was working in

I wouldn't have much respect for a business that couldn't supply me with the basic tools. I have actually been in this situation in the 90s. I was working in the USA for a telecoms company. They said that they couldn't give me a PC to use, but it was in the pipeline. In the meantime they gave me an old serial terminal, greenscreen and all, to use with their mainframe. After it warmed up (15 minutes) the contrast failed and there was nothing on the screen. I reported this and was told that's all they had. I offered to buy my own PC and use that until they could supply one but that wasn't allowed. This situation didn't change for many months. Despite the chance to earn a green card I didn't renew my contract. These days, in a temporary situation, I would use anything that got the job done. A tablet with or without an external keyboard perhaps, but a phone would be marginal. I wouldn't change professions if an employer couldn't supply a computer, I would change employer.