Our Case Studies

Connecting one of the world's largest gas pipelines

Strengthening the energy landscape of the country by deploying end-to-end communications across a 1400 km gas pipeline.


Natural gas, forming one of the most important sources of energy in the current age, is a resource available at select locations only. .

In order to make it available to industries across the country, it is transported via cross-country pipelines. We deployed intelligent communication solutions along 40+ stations, over a 1400 km pipeline.

The Task

We were entrusted by one of our valued customers to deploy a dedicated optical fiber-based communication system to meet the optimum operation, maintenance and safety requirements of one of the world’s largest gas pipelines. The 48” Gas Pipeline that starts from the east coast, runs across the breadth of India to end at the western shores, covering a staggering distance of approximately 1400 km.

The task at hand was to equip the pipeline, having 41 stations all along the route, with an STM-4/16 SDH optical fiber-based digital telecommunication system. The project was meant to be delivered in turnkey solution mode, involving provisioning of NMS system, CCTV System and EPABX System.

The Challenge

A gas pipeline running across the breadth of a country needed a communication network that is all-encompassing and self-sustaining.

Such independent systems have critical instrumentation requirements that ensure a pipeline’s security and longevity.

A project of this scale implied massive integration and deployment activities. Coordinating with other prime vendors for equipment testing at several places was no mean feat either. We decided to tread our time-tested path of using optimally designed and intelligently engineered solutions that were fit for the present and the future.

The Solution

Commtel engineers devised a Two-Tier network architecture, comprising of STM-16 and STM-4 SDH transmission systems that provided Layer 2 Ethernet connectivity at all stations along the pipeline.

Layer 2 Ethernet connectivity with point-to-multipoint and multipoint-to-multipoint configuration of Ethernet ports of STM-4/16 equipment, ensured consistent connectivity of all Ethernet devices in all failure conditions.

State-of-the-art CCTV systems were used at designated areas of main and remote stations using IP fixed, PTZ and explosion
proof PTZ cameras with encoders.

78 CCTV cameras, with a redundant recording functionality to capture video on a 24×7 basis, were centrally managed through a Network Video Management Software (NVMS). An archiver was provided at the master location, with a backup at a secondary location.

For centralized monitoring of this complex telecommunication network, the Network Management System (NMS) was provided to enable remote monitoring and control of telecom equipment at all telecom stations, from communication control centers located at the master location and a backup NMS provided at secondary location.

The Highlights

  • SDH STM- 4/16 deployed all along the pipeline route with features of being in-service upgradable to STM-64.
  • Packet-based triple-play service using EoSDH (EoS)
  • Major compressor stations at every 170 km were connected without any repeater stations.
  • Long-range optical amplifiers for end-to-end connectivity saved considerable cost and time.
  • Explosion-proof PTZ cameras were installed at all stations in high-risk zones.
  • Integration of multiple systems done effortlessly to form a seamless network.

The Benefits

This project brought us opportunities to prove our expertise beyond our core expertise. We didn’t just become a facilitator of world-class technical solutions; we became a symbol of trust and assurance.

The installed fibre-optic backbone, based on SDH STM-16 architecture, was ahead of its time and could be easily upgraded to STM-64. This feature of flexible upgradation ensured that it could be updated any time in the future, without any interruption to mission-critical traffic flow. This will save considerable time and effort, highlighting Commtel’s farsightedness.

The VoIP-based Voice communication was provided at all stations using a state-of-the-art Digital IP EPABX system at the master location and secondary location, ensuring round-the-clock connectivity.

When it comes to delivering world-class equipment, we strike all the right chords with our suppliers.

Our relationships with Fiberhome Technologies and Pelco were further strengthened during this project and have remained cemented to date. Our time-bound approach, with efficient people and time management, speaks volumes of the commitment and the dedication that we bring to all of our projects.

We’ve emailed you the access to the Whitepaper from


Kindly check your SPAM folder, if you have not received it.