One of the biggest enhancements in GSM phase 2+ is the mobile network integration with intelligent network (IN). Customised Application for Mobile network Enhanced Logic …
AV Roslyakov, AV Govoryhina - Infokommunikacionnye …, 2019 - journals.eco-vector.com
The service of mobile number portability has been operating in Russia since 2013. A central database of the ported numbers has been created and access to it has been provided to all …