Support

DIAMOND VOICE > Support

We are always available to serve you!

Toll Free: 888-293-1550 Option 2

Local: 972-293-1550 Option 2

Fax: 972-293-5329

Please note: emails are monitored during business hours. For emergency support, please call.  
For even quicker response, head over to our Frequently Asked Questions page. We’ve combined the most common questions from customers like yourself and created a page you can reference again and again. We’ve found clients appreciate a guide as it saves a phone call.