How many phones can I connect to one number? Carrie Collins June 09, 2020 18:34 Updated The industry standard is 5 phones, adding more may result in a deterioration of service. Related articles How many phones lines can I get at my residence? How do I transfer my existing phone number? Can I use other services while using REVTALK services? What happens if my account is disconnected? Comments 0 comments Article is closed for comments.