The 3rd Generation Partnership Project (3GPP) architecture has introduced a subsystem known as the IP Multimedia Subsystem (IMS) as an addition to the Packet-Switched (PS) domain. IMS supports new, IP-based multimedia services as well as interoperability with traditional telephony services. Voice Over LTE (VoLTE) is the technology to provide Voice service over LTE, However, not […]
What is VoLTE Roaming? Architecture Options and Challenges
What is the Roaming? How It works in 2G Network?
Recently, I received many questions and inquiries about the meaning of Roaming and some interesting questions: What is Roaming? What is the difference between National Roaming and International Roaming? First, all of us know that mobile communication networks and services have become an integral part of everyday life. People are now more and more reliant […]
What is 5G Security Edge Protection Proxy (SEPP)?
The Security Edge Protection Proxy (SEPP) is a proxy that sits at the perimeter of the PLMN network and enables secured communication between inter-PLMN network messages. It protects the home network and acts as a security gateway. Located at the edge of the network, it polices connections between the home network and the visited networks. […]