Sigma Systems Announces New Leadership for Its EMEA & APAC Regions TORONTO--(Marketwired - Apr 24, 2013) - Sigma Systems, a leading OSS provider offering catalog-driven service fulfillment solutions, today announced that Richard Hubble has joined Sigma as Vice...

Sigma Systems' Kerbey Altmann to Discuss OSS Best Practices at 2010 FTTH Conference and Expo TORONTO--(Marketwire - August 31, 2010) - What: Kerbey Altmann, director of Solutions Architecture for next-generation OSS provider Sigma Systems, will share best practices for OSS service...