Delhi Metro Rail Corporation(DMRC)

Duration: Feb 2023 – Sep 2025

DMRC’s Requirement

Delhi Metro Rail Corporation needed a robust, unified SIP- based telephony system to support its expanding Phase 4 network. The solution had to ensure seamless communication across Operations Control Centre (OCC), Backup Control Centre (BCC) and all metro stations, while integrating with FOTS, CCTV, Radio, PIDS/PAS systems, and emergency response infrastructure.

MTL’s Approach

Marushika Technology Limited delivered DMRC’s Phase 4 integrated telephony system through deep domain expertise, meticulous site readiness checks, and agile coordination. Starting with detailed ‘AS IS’ documentation of stations, OCC and BCC, the team conducted mock-ups and technical workshops to align stakeholders on the SIP-based IP-PBX architecture and its seamless integration with FOTS, CCTV, Radio, and PIDS/PAS. Specialized cross-functional teams finalized the ‘TO BE’ network design, standardized cabling and rack layouts, deployed pre-engineered materials, and ensured buffer stocks to keep multi-site work on track despite civil delays. Robust QA/QC processes, real-time issue resolution, and regular alignment with civil, electrical and PMC teams ensured consistent quality, timely clearances and a scalable telephony backbone ready for current operations and future expansion.

Complex, Phased Implementation

The Video Wall was part of a larger Smart City
infrastructure rollout. Multiple smart elements needed
integration in a phased manner at both ICCC buildings
(Sector 17, Chandigarh) and field locations.
MTL ensured round-the-clock availability of its technical
teams and coordinated with multiple OEMs for
synchronized integration.

High Technical Coordination

Integration with various other smart city components
and third-party OEM systems required high-level
interoperability and configuration accuracy.
MTL’s strong vendor partnerships and dedicated
technical liaisons ensured smooth multi-vendor
integration.

On-time Delivery

The project demanded timely delivery despite logistical
constraints and interdependencies with other smart
elements.
MTL deployed agile resource management and
proactive stakeholder coordination to meet all
milestones.

CSCL’s Requirement

Chandigarh Smart City Limited (CSCL) envisioned a cutting- edge Integrated Command and Control Centre (ICCC) to oversee vital urban services—water, sewage, sanitation, and transport. To power this, CSCL, via BEL, sought a high- performance Video Wall solution covering design, supply, installation, integration, testing, commissioning, Go-Live, and five-year warranty.

MTL’s Advantage

Complex, Phased Implementation:
- The Video Wall was part of a larger Smart City infrastructure rollout. Multiple smart elements needed integration in a phased manner at both ICCC buildings (Sector 17, Chandigarh) and field locations.

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Seamless communication backbone across large-scale metro operations.

Project Objectives

Deploy a centralized, redundant SIP IP-PBX system.

Integrate Help Points, Emergency & Executive Phones.

Achieve reliable OCC–BCC–Station communication.

Establish structured cabling, power for all telephony assets.

Scope of Work

The scope included installing a central SIP PBX with VoIP gateways, deploying Executive, Analogue, Emergency and Video SIP Phones, structured CAT-6 cabling, telecom racks, patch panels and integration with servers and switches, followed by testing call flows, emergency calls, network failover and system integration.

MTL’s Challenges

Civil Readiness Issues – Delay in availability of cable tray risers, GI conduits, and raceways in several stations impacted timely cable pulling and termination.

Power and Network Delays – Non-availability of UPS- backed power sockets and pending network switch installations delayed PoE testing for SIP phones.

Access & Coordination Constraints – Limited access to sensitive technical rooms (SCR, DG rooms, PF areas) required special coordination for work planning.

Help Point Interface Testing – Complex integration with PIDS/PAS , Radio and CCTV and SCADA systems required iterative configuration and testing to ensure real-time emergency handling.

SIP Endpoint Registration & VLAN Configurations – Initial issues with endpoint connectivity due to misconfigured firewall/VLANs were resolved with support from the central network team of FOTS Contractor.

Documentation Pressure – Simultaneous multi-station work led to difficulties in real-time documentation, asset tagging, and labeling verification.

MTL’s Offerings

End-to-end SIP-based IP-PBX design, supply & commissioning Integration of Help Points, Emergency & Executive Phones. Civil Readiness Issues – Delay in availability of cable tray risers, GI conduits, and raceways in several stations impacted timely cable pulling and termination.

Structured CAT-6 & telephone cabling in GI conduits/trays

Telecom racks, patch panels, surge protection, PoE ports.

Call flow, failover and emergency scenario testing

Backbone integration with OCC/BCC and operational

systems Pre-labelled cables, color-coded terminations, standardized rack wiring

Site-wise DWPs,QA checklists and robust documentation

Agile teams, buffer stock and flexible resource

mobilization Stakeholder coordination for civil,electrical and PMC clearances

Conclusion

Marushika Technology Limited’s systematic and technically sound approach led to the successful deployment of an integrated, scalable telephony system in line with DMRC's high standards. The project now serves as a benchmark for future smart communication infrastructure in metro networks.

Proven Results. Trusted Partnerships.

Real experiences from organizations that have partnered with us to solve complex challenges and drive results.

Marushika has been our trusted partner for years. Their expertise in providing our clients the perfect customized solution is the key to our consistently improving market presence

Ashish Yadav BEL

Marushika's commitment to excellence and innovative approach have greatly contributed to our success in providing top-notch video wall solutions.

Gautam Khandpur Brio Touch

Marushika's expertise and solutions have exceeded our expectations.

Amit Kansal Core IP Services

Marushika has been our trusted and valued partner in providing our software solutions to their large scale clients. Their expertise and commitment to quality have significantly contributed to our success.

Ravi Arya Rittal

We empower enterprises through strategic advisory & execution leadership, co-creating scalable solutions across critical consulting, network services, and IT infrastructure

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Corporate Office

H 32, 2nd Floor, Office No. 204, Sector-63, Noida, Uttar Pradesh, India - 201301

Registered Office

Shop No. 5, Acharya Niketan, Mayur Vihar, Delhi-110091, India

Contact Info

info@marushika.in
0120 4290383

CIN: L62099DL2010PLC205156 | GSTIN: 07AAGCM6937R1ZL