If someone tried to call you, but your battery was dead or you had no reception, yallo SMS Notify informs the person via SMS as soon as your mobile phone is ready to receive calls again.
This service can only be used with active yallo voicemail.

To deactivate MS Notify:
Send a text to 935 with the message NOTIFY OFF.

To activate SMS Notify:
Send a text to 935 with the message NOTIFY ON.