Wrong datatype on create dataset

[guibos]

I create a dataset as is redacted here: https://github.com/socrata/socrata-py#create-a-new-dataset-from-pandas.

When I check datatype of each colum some text columns are transformating to number. All cases are telephone cases like this "900 000 000". Some cases are something like this "900 000 000 (01)", in this case Socrata remove this value.

It is necessary to transform column to correct datatype and after reload all data?