B & L Telephone Service Inc

Since 1999, Bay Telephone Systems Inc. has been a telecommunications company providing various telephone and voice mail systems, as well as data network installation services. The firm sells, installs and supports phone systems, such as Avaya Partner, Nortel, Panasonic and WIN Communications. It serves businesses in the Metropolitan Washington, Maryland and Virginia areas. The firm is a Better Business Bureau (BBB) accredited company and a member of National Federation of Independent Business (NFIB). Bay Telephone Systems Inc. merged with Global Interconnect in 2004.

Frequentis USA, Inc., headquartered in Columbia, Maryland, specializes in providing advanced communication solutions for civil and defense sectors, including air traffic management and public safety. The company is committed to delivering innovative technologies and services that enhance operational efficiency and safety for its customers globally. With a focus on collaboration and customer-centric solutions, Frequentis USA integrates state-of-the-art facilities for engineering, manufacturing, and testing, ensuring compliance with industry standards. Their diverse team is dedicated to supporting mission-critical communications, offering extensive resources and expertise in various sectors, including aviation, defense, and public transport. Generated from the website

Ciena Communications is a part of Ciena Corporation, which is one of the leading providers of communication network infrastructure, associated software and professional services. With its headquarters in Linthicum, Md., Ciena Corporation offers optical amplifier modules, switches, transport platforms, and element management and network control systems. The company provides online technical information and configuration of products. It serves the finance, health care and telecommunications industries, as well as government and educational sectors. The company conducts the Ciena BizConnect partner program that includes support and promotional services. Ciena Corporation offers training sessions on topics related to optical networks. Ciena Corporation serves clients in Colorado and Texas.