Current rental Voice router/gateway model for X1?

I have a Cisco DPC3941T Voice modem/router.  I believe I am on the 200 internet speed plan.

It's been 5 years or so, is this the current model or should I be swapping for something newer at my local Xfinity store?  Always thought this one drops internet once in a while, and the white 'power' light never did work (all the other lights are fine)

If there is one to buy that performs better I would do that too and save th monthly fee - but it has to do voice.

Thanks!