Chamberlain Professional Products, the single source provider for secure, convenient, quality and stylish products for every access point, introduces new digital processing enhancements to the EL Telephone Access Control System, including all EL25 and EL2000 models. Designed to help troubleshoot issues with delivering POTS telephone service over digital media, the architecture of the updated EL telephone access system allows the EL models to seamlessly connect and perform on Analog telephone service sent over Digital media without having to add-on alternative devices or systems. This intensive engineering effort by LiftMaster provides dealers with the opportunity to recommend and install reliable, integrated telephone access solutions devoid of unnecessary add-ons or complexities but equipped with the ability to be compatible with more media options in the field, such as cable, fiber optic or DSL.