A line card and method is provided which supports symmetric and asymmetric telecommunication
services, such as symmetric and asymmetric DSL services. The line card may support
concomitantly POTS and asymmetric DSL services or support DSL services. A xDSL
interface provides processing for DSL signals and a POTS interface provides processing
for POTS signals. The line card is capable of switching operating modes or which
services it is supporting. Preferably, the line card is capable of switching operating
modes during a communication session. The line card may switch modes based on instructions
received from external devices, such as CPE or far end equipment, based on preprogrammed
software or based on operation of the line card.
