About Us

Our products are architected to enable next-generation service providers to offer PBX “extensions” as a value-add service over DSL, cable, wireless and IP-based connections. Acting as pure packet processing engines, MCK/Citel’s solutions are one step ahead on the evolution occurring in the voice industry because they “bridge” legacy voice systems to next-generation networks and applications.


Click on the links below for more specific information on Citel’s product families.


mck extenderedac expandable digital to analog convertermodule-extender