HOW TO SEND CALL ME BACK ON ALL NETWORKS

NETWORK
MTN	:*131*phone number#	Please call me
	:*131*1*phone number#	I love you
	:*131*2*phone number#	Send me credit
	:*131*3*phone number#	I have a gist for you
	:*131*4*phone number#	I need your assistant
AIRTEL	*140*Phone number#	Call me back
	*141*8*Phone number#	Send me credit
ETISALAT	*266*Phone Number#	Please call me
	*266*1*Phone Number#	Call me I love you
	*266*4*Phone Number#	It is emergency