Hi, I think you're looking for this SOAP call. More like it in the soap-admin.txt documentation:
Code:
<GetAllCalendarResourcesRequest>
[<domain by="id|name">...</domain>]
[<server by="id|name">...</server>]
<GetAllCalendarResourcesRequest/>
<GetAllCalendarResourcesResponse>
<calresource name="{name}" id="{id}">
<a n="...">...</a>+
</calresource>
</GetAllCalendarResourcesResponse>
Access: domain admin sufficient