Apr 14, 2015 Check connections, check the phone cord, make sure SIP ALG is disabled in your modem/router Please TEST YOUR CONNECTION HERE. After the test has completed and the summary tab is displayed, please refresh the page (or press F5 on your keyboard) and you will be taken back to the beginning. Click the button to start the test a 2nd time. The SIP testing tool was developed by Mike Fields, a member of the CLC Staff. This Windows application allows you to perform various queries to test the basic functionality of a 3M compliant Standard Interchange Protocol ( SIP) server. The tool acts as a SIP client that shows the message information that is passed between the client and server. Jitter is the variation in speed of your internet traffic. Jitter above 10 milliseconds can disrupt calls. If your VoIP test results indicate that you have enough bandwidth but shows high jitter, it's time to take a closer look at your connection with a ping test.
Before installing a Voice-over-IP (VoIP) phone system it’s important to check your internet connection is ready to support the number of phones you need.
This wizard will guide you through 3 simple steps to simulate a VoIP phone system running on your local network to check everything works.
Here’s an overview of what we’ll be doing.
Download a small application to run on your PC.
Run this application in the special administrator mode on your PC.
Enter the number of phones you need and run the test.