I would like to submit a feature request to have Zoho Desk provide first response and response times for tickets where our response to a client is a PHONE CALL that is logged with the ticket, instead of email. 

This is extremely useful and important for businesses that provide most of their support via phone call like our large business.  You can link this to calls logged in each ticket as an ACTIVITY.  Please, please, please add this feature!!!

I asked Zoho Desk support and you currently do not have this feature.