Temp Job or contract job?

Now, my new job starting date is not fixed yet although I hope issues such as whether it is a contract job or not can be finalised soon. Hopefully, it won't be a temp job as i am looking to work for a much longer term but if the supervisor says it is temporary measure then i probably accept the terms. At the moment though, the supervisor still has not picked up my calls. I wonder what is he busy with, though i still will try to contact him probably during my lunch breaks. Must hear personally from him why the job offer is a temp one and not a contract or even a perm one. Anyway, should things get finalised soon, hopefully as early as sept 5 I can start work in SPH or else it will be much later than initially planned.