The purpose of this pilot randomized controlled trial study aims to address the unmet need for feasible and efficacious strategies for reducing combustible cigarette (CC) use among people living with HIV/AIDS (PLWHA) in South Africa, which has the potential to significantly improve the health and long-term survival of PLWHA CC smokers. Using the proposed intervention, based on the Information-Motivation-Behavioral Skills (IMB), and a simultaneous embedded mixed methods approach, the investigators will evaluate a telehealth program targeting CC harm reduction, comparing E-cigarettes (EC) to nicotine replacement therapy (NRT) that is enhanced by integrating ecological momentary intervention (EMI) texting. As such, this proposal will significantly build research capacity in South Africa to conduct telehealth tobacco treatment interventions using innovative EMI approaches enhancing participants' engagement, as well as state-of-the art evaluation approaches.

Inclusion Criteria:

• Adult PLWHA CC smokers;
• Speaks Afrikaans, or Xhosa, or English;
• reports daily CC smoking (≥ 5 CPD);
• Owns any type of mobile phone;
• interested in reducing CC smoking but not necessarily trying to quit;
• Receives HIV/AIDS care in one of the eight selected clinics follow-up rates.

Exclusion Criteria:

• are pregnant or breastfeeding;
• unable to provide consent;
• used tobacco products other than CC in the past 2 weeks (e.g., EC, cigarillo);
• currently engaged in an attempt to quit CC smoking;
• current major depressive or manic episode, current psychotic disorder, past-year suicide attempt, or current suicidal ideation with plan or intent. plan or intent.

The de-identified participant data from the final research dataset used in the published manuscript will be shared upon reasonable request or for individual participant data meta-analysis beginning 9 months and ending 36 months following article publication or as required by a condition of awards and agreements supporting the research provided the investigator who proposes to use the data or the researchers who provide a methodologically sound proposal execute a data use agreement with NYU Langone Health. Requests may be directed to: Omar.ElShahawy@nyulangone.org. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research.

Beginning 9 months and ending 36 months following article publication or as required by a condition of awards and agreements supporting the research.

The investigator who proposed to use the data or the researchers who provide a methodologically sound proposal will be granted access upon reasonable request or for individual participant data meta-analysis. Requests should be directed to Omar.ElShahawy@nyulangone.org. To gain access, data requestors will need to sign a data access agreement.