Xfinity voice and Bridge mode

I was planning on creating a wired mesh network in my home using Eero.  I am currently using the Xfinity gateway for both the wifi and Voice. 

Can I turn on "Bridge Mode" on the Gateway and still use the Xfinity voice capability?

Note:  the only reason I would keep the Gateway would be for the phone function.  (Otherwise, I would buy a third-party dedicated modem.)

Any suggested solutions would be great.

thanks