This is an expected challenge. Our experience in the field suggests that potentially 20-30% of adult beneficiaries may lack a mobile phone (especially women). It is unknown how many of this cohort has access to a SIM. Irrespective, we consider the following potential solutions (non exhaustive):

• Supported registrations through either community health workers or through employers

• potential beneficiaries use/nominate a proxy (e.g., a family member, or community leader) device to register and receive notifications

• MNO’s/others subsidise the provision of SIM’s or Hardware to beneficiaries or proxy nominees.