API URL to export full device list

Hi All, 

I'm trying to create an API Call to export a list of all our zoom devices. 

I've download a API call from zoom that pulls phones but only phones. 

I'm looking for the full list of devices we have. 

the url it's using is:

 "/phone/devices?type=assigned&page_size=600"

the url has phone after baseurl which is why i assume i'm just getting phones but i can't for the life of me figure out what i need to replace this with to get all devices. 

Has anyone had any success with something like this before? 

Many Thanks