With the MTN Bip Me service, even without airtime, you can now at least communicate because you can do a “call me back”.
How does it work?
For a subscriber A from MTN to send a ” Bip Me ” to his correspondent B, the subscriber A enters : *166* “number of B” # Send/Ok/Yes.
The system shall automatically send correspondent B the following message : “Y’ello, you have received a “Bip Me” from number of A. Please call back”
The BIP ME service is free!