What is the maximum value for max_num in the module list API

Hi there,

What is the maximum value for max_num in the module list API (Max number of results returned from Sugar per page)?

Is it varying for each API / Sugar Instance version?

Is this configurable by Sugar instance admin?

I want to get all contacts from the sugar instance through REST API 

https://my-sugar-instance.com/rest/v10/Contacts?max_num=1000&offset=0

Thanks 

Ramaraj