Currently, I have AT&T for internet with their dsl line and it is really slow and they couldn't upgrade me to a faster speed due to stability issues with their line. As a matter of fact they actually downgraded my speed when a tech came and inspected the line. If I go with Sonic for internet, is that going to have the same effect on my speed?
If you qualify for the Fusion service, which is ADSL2+ as opposed to the older ADSL1, you may see slightly improved performance. Or, it could be similar - it's impossible to really determine until we try.
If you do not qualify for Fusion and we offer you the AT&T line share DSL product, that's what you have already (but with us as the ISP), so it would be the same line, port and equipment as it is today.