There are some drawbacks I've noticed when using my phone as a mobile hotspot, especially under heavier workloads.

An IP phone that runs the session border controller (SBC), which encrypts traffic, reconnects calls if dropped, overcomes firewall issues and routes internal calls within the network. Without an SBC ...

Add Yahoo as a preferred source to see more of our stories on Google. Over the last couple of years, it has become pretty much standard for phone brands to do an annual launch of new devices.