Basic of TMSC Networking

TMSC Networking

The MSOFTX3000 supports various protocols such as the H.248, ISUP, and BICC. When deployed with UMG8900, it provides TDM trunks or IP bearer channels of large capacity. It can function as the tandem mobile switching center (TMSC) in the hierarchical network.

TMSC Networking

The networking as shown is suitable for the GSM and 3GPP R99 hierarchical network structure, in which, the call signaling and bearer connection are connected through the TMSC hierarchically. The MSOFTX3000 realizes the call connection and route selection functions in the PLMN. It also controls the bearer terminal (IP) at the core network side in the UMG8900.

In the 3GPP R4 all-IP network, the MSOFTX3000 realizes the end-to-end bearer connection between the originating end and the terminating end through the BICC signaling. That is, the call signaling messages are transferred hierarchically through the TMSC, but the bearer does not require hierarchical processing. In this case, the media gateway (MGW, such as UMG8900) is not required in the networking depicted.