Manual live-operator calls to non-DNC numbers require compliance with calling hours (9am-9pm weekdays/Saturday, noon-9pm Sunday) and disclosure requirements but do not require prior written consent under Texas law. ADAD calls (prerecorded/synthesized voice without live operator) are regulated under Ch. 302 and Ch. 304 — registration required, DNC compliance mandatory, disclosures required. Federal TCPA consent requirements layer on top for calls to cell phones. The EBR exemption (§ 302.056) provides relief for existing customer calls. Texas does not have a Florida-style written consent requirement for all automated calls — but the DTPA private right of action (post-SB 140) makes violations much more costly.