The Cisco 6015 is a front-access, six-slot multiport line-card architecture capable of supporting industry-standard asymmetric DSL (ADSL) and single-pair high-bit-rate DSL (G.shdsl) technologies. The product is fully compliant with Network Equipment Building System (NEBS), American National Standards Institute (ANSI), European Telecommunication Standards Institute (ETSI), and asynchronous transfer mode (ATM) carrier-class network element standards. Network transmission connections include T1/E1 inverse multiplexing over ATM (IMA), DS3 User-Network Interface (UNI), and future OC-3/Synchronous Transport Module level l (STM-1) UNI. Up to 48 ADSL or G.shdsl ports can be provisioned for use with the Cisco 6015 in a variety of configurations. The Cisco 6015 supports simultaneous voice (basic telephone service) and data services with the addition of a specially designed plain old telephone service (POTS) Splitter package that is available from Cisco Ecosystem partners.