Siemens AG has awarded a four-year, global networking contract valued at $174 million to AT&T. The contract extends and expands a long-standing relationship between the two companies. AT&T is Siemens' primary networking services provider in North and South America, Asia Pacific, the Middle East, Africa and parts of Europe, providing a standardized 800-plus node network-based IP VPN. Under the new agreement, AT&T is delivering an integrated solution supporting Siemens' Network eXchange (SNX) strategy, which will provide a common communication model across Siemens and its business partners. The managed IP VPN solution is based on AT&T's global MPLS platform. http://www.att.com