Appointment Reminders via SMS, Voice and Email Missed appointments can be a significant source of lost revenue for any business. The wastage of staff time readily mounts up and with forgetfulness being the primary reason for missing appointments, iRemind provides a comprehensive and sophisticated solution with SMS, Voice and Email reminders controlled easily from the office PC or administration terminal.iRemind can deliver reminders via SMS, Voice Messages to both mobile and landline phones plus via Email. The option then exists for the recipient to respond either confirming or canceling the appointment. There is also the option for reminder cancellation and rescheduling.