Scoring Rules for Calls

Scoring Rules for Calls

In Zoho CRM Plus | Setup | Automation | Scoring Rules, I am trying to assign points for Call Activities. In the Leads database, I see a section named Calls. The only variable listed is "Missed" We have Ring Central integrated into Zoho.

I want to add points to leads based on activities for calls. For example, if an outbound call lasts more that 2 minutes, I would like to add 2 points to the Lead.

It appears that the best way to set this up is the Zoho Motivator tool. In Zoho CRM Plus, there doesn't seem to be access to most of the Call variables. Does anyone have recommendations using Scoring Rules or another tool to add points to leads contacted by phone in CRM Plus?