When dealing with VoIP traffic on today’s networks it is inevitable that you will run across an issue involving NAT and SIP. It is helpful to understand what NAT (Network Address Translation) does before you see why this causes a problem with SIP (Session Initiation Protocol).
As more and more services migrate to the cloud, so does the need for increased bandwidth. While still viewed as a relatively commoditized service, the speed and quality can (and do) vary by provider. Understanding how your internet bandwidth is provided will not only help you make better buying decisions, but will also help educate on the value versus commodity of bandwidth.
Not all internet access service is created equally. There are two main types of internet access: broadband and dedicated access.