how do I pay lesser on voice calls

Hi Tope, each of the MTN tariff plans are cheap and unique, it depends on the one that meet your interest. Like you can use XtraSpecial to make cheap international calls to some international destinations. You can also enjoy cheap national calls same rate to all net work on this tariff plans.

MTN Pulse tariff plan is a prepaid tariff plan that allows you enjoy flat rate of 11.26k/sec for calls across all local networks in Nigeria after the first 60 seconds call of the day at 25.6k/sec. N4.10k/SMS. PayGo Data at N3.07k/MB. With MTN Pulse, you talk more, laugh more and love more. To migrate, dial *406*1# or text 406 to 131 or *123*2*2#.

MTN TruTalk is a prepaid tariff plan that allows you enjoy a FLAT rate of 11.26k/sec for calls ACROSS ALL local Network in Nigeria, after paying a daily access fee of N7.17k and N4.10k for SMS. PayGo Data at N3.07k/MB. To migrate, simply text TT to 131 OR Dial *400# or dial *123*2*6#

MTN XtraSpecial Prepaid is a special plan that allows you enjoy a flat rate of 15.36k/sec for calls to ALL networks in Nigeria and Calls to 12 selected international destinations (Canada, China, Denmark, Norway, India, Ireland, Malaysia, Romania, South Korea, United States).
To migrate to this plan, simply dial *408*1#, send 408 to 131, dial *123*2*4# or via MyMTN app.

Kindly be informed that the migration rules of N102.38k charge after the first migration within 30 days still applies.