connecting to Comcast/Xfinity land line phone

[sb257]

Can this wireless modem be used to connect the Comcast/Xfinity landline phone? 

[plemans]

The C6220 doesn't have voice. 

If you're wanting voice, you'd need to look for the models with a V at the end to indicate voice and not version. 

Like the C7100V

or CM500V, CM1150V    

CM: modem only

C: modem/router combo device

C*****V:  modem/router/voice device.