The Unicall MFC/R2 protocol software currently deals with variants for the following:
Algeria
Argentina
Bahrain
Bolivia
Brazil
Chile
China
Colombia landlines
Colombia cellular
Czech Republic
Democratic Republic of Congo
Egypt
Ghana
Honduras
India
Indonesia
Iraq
ITU
Korea
Kuwait
Malaysia
Mexico
Nigeria
Panama
Philipinnes
Romania
Saudi Arabia
Singapore
Thailand
Venezuela
Vietnam
MFC/R2 is also used in Australia, Belgium, Costa Rica, Ecuador, Finland, Greece, Guatemala, Israel, New Zealand, Paraguay, Peru, South Africa, Uruguay and various former iron curtain countries,