Call flow describes the process by which a network routes a call to a mobile device . Even LTE devices still use 3G networks for most voice calls. 3G call flow is different in a GSM network than in a CDMA network.9 May 2014
Call flow describes the process by which a network routes a call to a mobile device . Even LTE devices still use 3G networks for most voice calls. 3G call flow is different in a GSM network than in a CDMA network.9 May 2014