Towards the development of LTE networks: Implementation of OpenIMSCore in asterisk/OpenBTS GSM network
Raja Anwaar Ali, Anooshah Nooshad Khan, Saba Arshad, Usman Younis · 2013
GSM network has been implemented using universal software radio peripheral. Voice services have been established between the registered users in our GSM network. Secondly, to demonstrate the smooth transformation of GSM networks to LTE networks, internet protocol multimedia core network subsystem has been integrated in our GSM network, and voice services have been established between the GSM mobile phone and IMS open source softphone.