MTN subscribers (Outbound)
How to be connected whilst traveling outside the country:
When you arrive at your destination, your mobile handset will automatically search for a network specified within your SIM card. There is also a manual selection mode so you may override the automatic selection.
Manual selection is simple:
• Select "Networks" from your phone's menu
• Choose "Network Selection"
• Choose "Manual"
• You will see a list of all operators available in the country
• Select one of these operators
• If registration fails, try to process again choosing a different operator
• Once a network is selected, your phone will display the network operator's name
So before leaving Sudan you have to contact Customer Service and inquire about the available networks which we have roaming agreements with them.