Well yes, of course you can have a desk and a mobile. I was asking if there is a mobile device that can have multiple separate lines/numbes as a taditional office phone might. Like I dial mobile number1, it rings distint ring1.... "hello this is Plaz". Or I dial mobile number2, it rings distint ring2.... "Hello, Junk Computer Parts Inc, how can I help you?"
For sure, in the UK it's called "Line 2". I don't think it's particularly popular though because it defeats the object of people having work "mobile" numbers. Most people (myself included) have a work "mobile" so that they can switch it off when they're not at their desk. Yes, I know it pretty much defeats the object of having a mobile phone, but it keeps the boss happy!