Brazilian wireless operator Telemig Celular has inked a USD100 million deal with Ericsson of Sweden for GSM equipment. The deal includes the delivery and installation of 870 base stations and a core network platform. Telemig has approximately 2.4 million subscribers in Minas Gerais and hopes to begin a migration of customers from TDMA to GSM by the end of 2004. Telemig is majority-owned by Telpart Participacoes, which also has a controlling interest in Amazonia Celular. Both companies plan to replace their existing infrastructure with GSM. On a less positive note, the purchase of GSM technology is believed to present an obstacle to Telemig’s eventual acquisition by mobile operator Vivo, which uses the rival CDMA technology.