We all know what happens when our phones die or go to an area with no service. Rather than getting a “Hello” from our intended pickers we are instead greeted by a lady’s voice: usually she says something along the lines of “Jambo! The mobile subscriber cannot be reached”
Send an SMS message to 555 with the text SUB MCA
Wait a couple of seconds and you should receive a reply from 555 confirming that you’ve been subscribed to MCA (Missed Called Alert).