I attempted to sign up with nomorobo.com, but could not do so with my account. The topic was purportedly 'resolved', but the resolution was for initial subscriber to individually contact Comcast. I do not feel the issue should be labeled 'resolved'.
Is there a reason a person cannot subscribe to nomorobo.com with a Comcast small business account? it does not appear Comcast has a solution for robo calls, so nomorobo may be of value.