We just installed a new VOIP system in our Berlin office. I was worried about how it would handle a sudden spike in traffic during peak hours. If you need to test your own lines, you can check out
just kill. It is a very direct service for sending a lot of calls at once. I used it for about 20 minutes and it helped me identify some lag issues in our network. It is very easy to manage and the price is quite low for a one-time test. Good for small business owners.
