The Cisco 3600 bundles, installed with the digital modem network modules and PRI/BRI interfaces, offer the most flexible, scalable, manageable, and high-performance dial access solutions available in the market today.The Cisco 3640 BRI modem bundle utilizes the popular 1FE2W network modules to provide Ethernet LAN connectivity for up to 16 concurrent remote users, utilizing the four or eight port BRI network module.