Articles tagged with: Chief Technology Officer and GSMa

T-Mobile CTO to Leave the Firm

T-Mobile International's Chief Technology Officer, Joachim Horn has announced that he is to leave the company at the end of March to pursue a new professional opportunity outside of Germany. A successor for him will be announced in the near future.  more

Related Tags: t-mobile, edge, hspa, mobile-broadband

Sucessful Trials of SIP-I for Voice Calls on GSM Networks

The GSM Association has completed successful trials of voice calls based on the SIP-I protocol between core networks supplied by Ericsson and Nokia Siemens Networks. Hosted by TeliaSonera in their Finnish and Swedish laboratories, the trials are a significant step towards the use of SIP-I to control the transmission of packet-based voice between mobile networks.  more

Related Tags: gsm-association, teliasonera, core-network, nokia-siemens-networks, siemens, interoperability