Spain’s Alcatel Sesa SA has taken control of two Polish companies, PZT Telkom, which employs 640 people in Warsaw, and Teletra, whcih has about 1,300 employees making public telephone exchanges; Alcatel Sesa said it would guarantee jobs for 1,650 people at the two firms for the next 18 months and committed itself to increasing the capital of the two companies by another $25m within a year; it plans to start manufacturing the Alcatel 1000 S-12 exchange in Poland, where it says it has already built eight digital exchanges in Poland with a $60m credit that was put up by the Spanish government.