said by davidhoffman:
No, you will not be able to keep the old telephone and DSL lines.
Only half right. No, you cannot keep traditional ADSL with an active U-Verse VDSL2/ADSL2+ signal at your residence -- that is one or the other
However, it is perfectly acceptable to keep an analog POTS telephone line combined with U-Verse. POTS will and does line-share with VDSL2 or ADSL2+ just fine.
Make sure when you order you are clear with the Customer Service Rep that you would like to keep your traditional analog POTS line and you are NOT interested in U-Voice VoIP
If you are still interested in the switch, give 800.288.2020 a ring, visit uverse.att.com, or visit a local AT&T Store to begin the U-Verse ordering process