Hotel Communications & hotel specific applications
Providing the aid for hotels to track and communicate with their staffs for customers — property-wide voice, UC and hotel-specific applications.
Learn more →Hong Kong · Est. 2002
Provide the edge a company needs to outsmart, outpace and out-deliver competitors
Deer Network Systems Limited designs, secures and manages the communications and infrastructure that keep hospitality, enterprise and critical operations running — around the clock.
24/7
Round-the-clock support
Est. 2002
Serving businesses since 2002
HK · UK · DE
Hong Kong · UK · Germany
What we do
Our services
With Deer Network Systems Limited, customers can trust us with their data — from hotel communications to network infrastructure & security and managed services.
Network infrastructure & security
Protecting and enhancing network data & detecting attacks in the system — LAN switching and routing, wired and wireless solutions.
Learn more →
Managed services
Data sustaination & restoration — monitoring, maintenance and support so your IT estate stays healthy with clear escalation when you need specialists.
Learn more →Innovate to succeed
If you don’t innovate fast, disrupt your industry, disrupt yourself, you’ll be left behind.
We help organisations stay ahead with communications, network consulting, threat management and cybersecurity practices that match how they actually operate.
We want to
Study your business so we can apply the right support services.
Whether it is Communications, Network consultations, threat management or cyber security maintenance, we can have you set up precautions.
Discuss with our consultantHow our systems work
Our infrastructure knowledge runs deep so your business will reach greater heights.
We’ll be in touch as soon as possible to discuss your questions — from design and secure build-out through monitoring and 24/7 response.
Why Deer Network Systems?
What sets us apart for clients who cannot afford downtime
Four practical differentiators — local presence, certified delivery, security-first design and round-the-clock ownership.
24/7 round-the-clock support
Coverage that matches hospitality and enterprise hours — so incidents get a specialist response whenever systems need attention.
Local Hong Kong support
On-the-ground engineers who understand HK sites, compliance expectations and how properties actually operate day to day.
Certified engineers & delivery
Hands-on networking and security specialists across Cisco UC, Microsoft 365, Polycom, hotel PBX and related platforms — ready for design, cutover and recovery.
Security-first delivery
Threat management and hardened controls built into the architecture from day one — not bolted on after go-live.
Outcomes
Selected project highlights
Reference cases aligned to our service lines. Client descriptions, photos and metrics will be added once approved — these are not published claims yet.
Hospitality / Office
Reference case — details & photos coming
Ekahau Wi‑Fi Survey
Anonymised reference — e.g. Kowloon hotel or Central office floor (client name pending).
Challenge
Uneven coverage, dead zones and roaming drops in high-density guest or staff areas.
What we did
On-site Ekahau survey, predictive and measured heat maps, AP placement plan and validation walk-through.
Result
Improved coverage and roaming continuity across surveyed floors — metrics and photos to follow.
Hospitality
Reference case — details & photos coming
Hotel network & communications upgrade
Aligned with DNS Hotel Solutions — anonymised hospitality property (client name pending).
Challenge
Ageing guest Wi‑Fi, voice and back-of-house links struggling at peak occupancy.
What we did
LAN/WLAN redesign, guest and staff SSID segmentation, staged cutover and post-go-live monitoring.
Result
Stable guest experience through peak periods — approved outcomes and imagery to be added.
Enterprise
Reference case — details & photos coming
Enterprise security & managed monitoring
Anonymised enterprise / multi-site environment (client name pending).
Challenge
Inconsistent firewall policy, flat segmentation and limited after-hours visibility.
What we did
Firewall baseline, network segmentation and 24/7 managed monitoring with escalation runbooks.
Result
Clearer threat posture and faster response windows — metrics pending client approval.
Credentials
Licenses & certifications
Official Hong Kong licences — see About Us for full details.
-
82764Employment Agency Licence Labour Department -
15008Dutiable Commodities Import & Export License Customs and Excise Department -
2466Security Company Licence Type 3 Security Bureau -
WPN 9512-261-D3105-01Registration of Waste Producer Environmental Protection Department - Registered Deployer Panduit Corp
Licence numbers as supplied. More certifications may be added later.
Let’s chat
Ready to strengthen your infrastructure?
Get in touch with us to discuss your needs — hotel systems, network security, managed operations or data restoration.
Hong Kong
+852 2159-3000
United Kingdom
+44 20-4593-2222
Germany
+49 40-2285-8168
Support
support@deer.hk