Telephony Service

WhatsApp Image 2025-10-23 at 11.54.55_ae8c90e9
WhatsApp Image 2025-10-23 at 11.54.56_3c82f053
WhatsApp Image 2025-10-23 at 11.54.57_5b1fbe3b
WhatsApp Image 2025-10-23 at 11.54.57_b764d7af
WhatsApp Image 2025-10-23 at 11.54.58_d00035e6

The ESA Telephone System, an extension of the LIRR Telephone System network, serves as the primary communication system connecting Grand Central Terminal (GCT), tunnels, other ESA areas, and Yard Services on the BCS network. The system is built on Eco Servers, which function as the main call processing servers, and a special cross cable connects two Eco Servers to create a redundant duplex setup, each equipped with an SSD. The ESA PBX telephone system is designed, configured, and installed using the Unify OpenScape platform, consisting of three PBX systems to handle all telephone communications across the network. Extensive planning and coordination were carried out with MTA/LIRR and carrier partners to ensure seamless integration with PSTN connections.

The project involved the deployment, commissioning, and testing of all telephone endpoints, including VoIP and analog units, along with Analog-to-SIP converters and Patton Gateways for final communications. More than 2,400 VoIP and analog phones were installed throughout the tunnels and Grand Central Terminal, including public emergency phones, tunnel emergency phones, and elevator phones. Detailed test procedures and test case documentation were developed for various testing phases, ensuring reliable performance and system validation. Additionally, comprehensive training was provided to MTACC and LIRR personnel upon project completion to support smooth operation and maintenance of the system.

The ESA Telephone System is an extension to the LIRR Telephone System network. The ESA Telephone System is the communications system utilized by services within and between GCT, Tunnels, other areas of ESA and Yard Services on BCS network. Eco Servers is being used as the main call processing server for ESA Telephony system. To build a redundant system we are using a special cross cable which connects2 EcoServers.

Duplex system will be delivered with 2 SSD (one at each EcoServer). The OpenScape 4000 EcoServer shelf is the base cabinet of the OpenScape 4000 system. The main processor module is based on an x86 architecture.

We, Vcomnets have implemented VoIP gateways. IP Gateway functionalities for seamless migration to VoIP infrastructureare available with HG 3500 peripheral cards in the OpenScape 4000 access points, or with virtual software-based HG3500 in the OpenScape 4000 SoftGate application and OpenScape 4000 Branch.

  • System design for ESA PBX telephone system using Unify OpenScape system (3).
  • Design configure and install 3 PBX system for all telephone communications on the network.
  • Planning and coordination with MTA/LIRR & Carrier for integrated system with PSTN connections.
  • Deploying, commissioning, and testing all telephone end points including VOIP/Analog units and Analog to SIP converters/Patton Gateway for end communications.
  • Deployed more than 2400 VoIP and Analog phones across the Tunnel and grand central terminal, this includes Public Emergency phone, Tunnel Emergency phone, Elevator phones.
  • Test procedures and Test case documentation for different phases of testing
  • Provided training to MTACC and LIRR after the completion the project.