Learn how and where Open Source VoIP can and should be used within the carrier space.

Just today I stumbled on this article written by Flavio E. Goncalves which compares Asterisk and OpenSER. It’s a short and concise article worth sharing with you all. Here’s a few snippets.
“If you work with IP telephony, it’s quite possible that you have not heard about OpenSER, but certainly you must have heard about Asterisk. [...]