"Basic" airtime is applicable to any incoming calls from and outgoing calls to all numbers except 8-digit mobile numbers starting with "51", "53", "54", "56", "59", "6" or "9", including calls to Customer Care Hotline 888 or 12580, 198 Financial Link, #888 and 218 for voice and fax mails retrieval.
"Mobile" airtime is applicable to any incoming calls from and outgoing calls to 8-digit mobile numbers starting with "51", "53", "54", "56", "59", "6" or "9".
Both incoming and outgoing call airtime is counted in regard to the originated calling number only.