IP Multimedia Subsystem (IMS)
Kleos IMS is compilable with 3GPP standard to provide VoLTE and multimedia services. Based on X86 architecture and a user-friendly web-based network management system(NMS), it is easy to deploy and maintain.
Kleos IMS is composited with the following sub-modules:
P/I/S-CSCF：Providing basic VoLTE registering, calling, routing and other core services.
SMC：Short message center
SGW/MGW：Enables signaling and media between IMS network to interwork with 2G/3G/PSTN networks
VoLTE AS：Volte Application Server(AS), provides value-added services such as call waiting, call transferring etc.