Thursday, December 8, 2011

Ericsson Delivers Circuit Switched Fallback for LTE

Ericsson announced the commercial deployment of Circuit Switched Fallback (CSFB) in LTE networks in several networks around the world, ensuring telecom quality voice and SMS services in LTE smartphones on the global GSM/WCDMA market.

Circuit Switched Fallback network functionality means that mobile broadband data traffic is run over LTE, or HSPA when LTE coverage is not available, while voice and SMS services are provided using GSM or WCDMA circuit-switched networks.

CSFB functionality is delivered as a software upgrade to operators’ core and radio networks, which include circuit-switched core (Mobile Softswitch Solution), Evolved Packet Core (Serving GPRS Support Node-Mobility Management Entity or SGSN-MME) and radio access (GSM, WCDMA and LTE).

"We now introduce telecom grade voice services to work in combination with the superior data connection speeds that are available in LTE smartphones for the global GSM/WCDMA market. These commercial deployments of Circuit Switched Fallback prove the market maturity of this new technology and demonstrate Ericsson’s technology leadership and commitment to helping operators launch services on the latest consumer devices," says Magnus Furustam, Head of Core & IMS at Business Unit Networks at Ericsson.

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