DC Relay provides the ability to click to SMS and Call directly from Tekmetric.  The latest version can be downloaded from the Chrome Web Store. 

Once installed go to the Options page for the Chrome extension:

Complete the options form:

For the domain enter the first portion of the web address you use to access DC. For example: https://acmemotors.digitalconcierge.io the domain would be acmemotors

Domain: Your DC doma

username/password: Your DC credentials

Extension: This is the extension to make calls from.