SDI PARIS
+33 1 45 55 05 58

IT & low-voltage infrastructure integrator — Paris & Île-de-France

Network, IP telephony and security infrastructure for businesses.

Design, deployment and ongoing operation. UniFi networks and Wi-Fi, 3CX telephony, IP video surveillance, access control and intrusion alarm — for a single site or a multi-site estate.

Typical layout Live
19-inch rack — technical room Carrier uplink Fibre · ONT · 4G backup Firewall Routage · VPN · VLAN PoE core switch Aggregation · 10G Patch panel Cat 6A · labelled 3CX server IP PBX · SIP trunk NVR Recording · storage UPS Runtime · clean shutdown Access points Wi-Fi 6E / 7 · UniFi IP cameras Dome · bullet · fisheye IP phones Yealink · Snom · mobile Access control Badges · intercom Monitoring VPN · alerts · backups
Layout

Hover over or tap a device to see what we take care of.

2009
Founded
2 offices
Paris 16th & Franconville
24/7
On-call under contract

Services

From low-voltage cabling to day-to-day operation.

We cover the whole chain: site survey, cabling, rack installation, configuration, acceptance testing and ongoing operation. One point of contact, from the network diagram to the on-call phone.

01

Networks & Wi-Fi

LAN and WLAN architecture, VLAN segmentation, routing and site-to-site VPN, copper and fibre cabling, patch racks and power distribution. Wi-Fi coverage measured on site, not estimated.

  • UniFi
  • Ubiquiti
  • Cisco
  • Netgear
  • Cat 6A / 7A
02

IP telephony

3CX phone system, hosted or self-hosted, SIP trunks, number porting, call queues, IVR, desk phones and mobile apps. Migration from your current system with no service interruption.

  • 3CX
  • Yealink
  • Snom
  • SIP trunk
03

IP video surveillance

Camera placement and field-of-view study, dome, bullet and fisheye cameras, recorders and storage sizing, remote viewing. Signage, retention periods and processing register compliant with GDPR.

  • UniFi Protect
  • Dahua
  • Hikvision
  • NVR
04

Access control & alarm

Badge readers, electric strikes and maglocks, IP intercom, per-person access rights and time schedules, entry logging. Integrated with the intrusion alarm and video.

  • UniFi Access
  • IP intercom
  • Intrusion alarm
05

Managed services & maintenance

Maintenance contracts with defined service levels, equipment monitoring, backups and restore testing, asset and licence management, contractual on-call. A written report after every intervention.

  • Monitoring
  • Backup
  • SLA
  • On-call
06

Supply & integration

Servers, firewalls, NAS, switches, desktops and laptops, displays and peripherals. Hardware pre-configured and documented before delivery, with an inventory handed to the client.

  • Apple
  • HP
  • Dell
  • Microsoft
  • Synology

Method

Four steps, nothing improvised.

Every project follows the same sequence, from a single switch replacement to a multi-site rollout. That is what makes an installation something a third party can take over — even years later.

01

Audit

Site survey, inventory of the existing setup, building, cabling and operational constraints. Photos and measurements.

02

Design

Network diagram, layout plan, itemised bill of materials with prices, schedule and phasing of the work.

03

Deployment

Cabling, labelled rack installation, configuration, joint acceptance testing and handover of the technical file.

04

Operation

Monitoring, updates, changes to the estate and on-call according to the contractual service levels.

Deliverables

An installation ends with documents.

What makes an infrastructure maintainable — by a third party, or by us years later — is what is written down. Every project is handed over with its file.

Diagram

Installation diagram

Logical and physical architecture: links, VLANs, IP addressing plan, active equipment.

Plan

Rack layout & labelling

Rack elevation, port-by-port patching, identical labels on site and on the plan.

Spreadsheet

Priced bill of materials

Hardware, licences and labour itemised line by line, approved before anything is ordered.

Sign-off

Acceptance test report

Tests signed off with the client: Wi-Fi coverage, throughput, recording, inbound and outbound calls.

File

Technical file

Credentials, exported configurations, recovery procedures and manufacturer contacts.

Report

Intervention report

After every visit: findings, actions taken, parts replaced, next steps.

References

Environments where downtime is not an option.

Diplomatic missions, multi-site hospitality groups, medical practices and regulated professions — settings where availability, traceability and confidentiality are non-negotiable.

Embassy of Luxembourg
Diplomatic mission
GL Events
Events Exhibitions
Fitz Group
Multi-site restaurants
One Place
Restaurants
Group Hotel Green Spirit
Hospitality
LVMH
Fashion & Leather Goods
Paris Descartes
Faculty of Humanities and Social Sciences
Institut Médical Sport Santé
Healthcare
Espace Médical Vauban
Healthcare
Law firm
Regulated professions
Group of Gold Line
Services
Ido Car
Mobility

Vendors & software publishers

A small set of vendors, mastered end to end.

We deliberately stick to a limited number of vendors we know down to the firmware, rather than a broad catalogue we would only half master.

  • Ubiquiti · UniFi
  • 3CX
  • Apple
  • Dell
  • HP
  • Microsoft
  • Cisco
  • Netgear
  • Dahua
  • Hikvision
  • Yealink
  • Snom
  • Synology
  • Watsoft
  • OVHcloud

Contact

Let's talk about your site.

Describe the context and the scope. We will get back to you to arrange a site survey — a proper assessment is the only honest way to quote.

Service area Île-de-France
78Yvelines 92Hauts-de-Seine 93Seine-Saint-Denis 94Val-de-Marne 91Essonne 77Seine-et-Marne 95Franconville — office 75Paris 16th — office
Paris
27 rue de Montevideo
75016 Paris
+33 1 45 55 05 58
Franconville
2 rue du Relais
95130 Franconville-la-Garenne
+33 1 45 55 05 59
Monday – Friday 9:00 – 19:00
Saturday 9:00 – 18:00
24/7 on-call for clients under contract
Paris and inner suburbs first — outer suburbs and travel beyond the region on a project basis

The information you provide is used solely to handle your request and is neither shared nor used for any other purpose. It is kept no longer than the business relationship requires.

or by phone: +33 1 45 55 05 58