GSM Intercom Systems in Sydney for Wireless Communication and Secure Access Control
Expert GSM Intercom Systems in Sydney, Delivering Reliable Mobile-Connected Communication, Easy Installation, and Enhanced Access Control for Homes and Businesses
GSM intercoms suit sites where cabling is limited, costly or simply not viable. For gated driveways, apartments or remote industrial sites, GSM delivers reliable access
without trenching or building works. Using the mobile network and a SIM card, the intercom calls a chosen number or call group. Approved users can unlock
remotely. SCES supplies and installs GSM intercoms designed for flexibility. We confirm mobile coverage and choose the best carrier, size the antenna and power
options to the site, and can arrange SIM billing that suits strata or site management.
Download the GSM Intercom Product Brochure to see models, features and setup options.
At a Glance
Key Benefits of GSM Intercoms
Reliable access control without cabling or complex network setup.
Remote access
Rings mobiles and landlines anywhere in Australia.
Flexible entry methods
PIN, fob or smartphone app access on supported models.
Rugged options
Proven performance in outdoor and remote conditions.
Scalable
From single gates to multi-tenant buildings.
Wireless convenience
No building LAN or Wi-Fi required for operation.
Coverage and signal check
We measure signal strength at the door station location and pick the carrier that performs best. External antennas help where coverage is marginal. This planning step avoids call drop outs later.
Power and solar options
GSM intercoms can run from mains power or a compact solar kit. We size the battery and panel for your duty cycle and local conditions so the system stays reliable through winter and bad weather.
Call routing to mobiles and landlines
Each apartment, business or department can have one or more phone numbers assigned. Set day and time rules so calls go to reception during business hours, then to security, caretakers or on call staff after hours. Missed calls can roll over to the next contact. Authorised users can open doors with a keypress during the call. This works for strata lists of units as well as commercial tenant directories.
Integration options
Link to the door strike or gate motor for controlled release with time schedules. Add a keypad or reader so residents and staff can use PIN or fob. For video at the door, many GSM units include a built in camera. Where supported, we enable snapshots or streaming to the mobile app and can record to an NVR. Note: GSM intercoms do not integrate to lifts.
SIM plan options
For strata managed properties, we can arrange Optus and Telstra SIM plans with no application forms, no credit checks and no lock in period, starting from $25 + GST per month. Billing can be set up to suit strata management and changed later without penalty.
Typical Applications
Where GSM Intercom systems deliver the most value.
Apartment blocks
Connect residents without retrofitting cables.
Gated estates
Secure entry with no trenching.
Farms and remote sites
Ideal for off-grid or isolated locations.
Industrial yards
Manage deliveries remotely by mobile.
Our Process
A structured approach from signal testing to long-term support.
Signal check
Confirm coverage, choose the best carrier, and determine optimal antenna position.
Design
Plan SIM management, call flows, time schedules, and rollover rules for your site.
Installation and commissioning
Install weatherproof enclosure, power backup, test number routing, and confirm door release.
Training and handover
Show how to update phone numbers, destinations, and configure the mobile app where supported.
Maintenance and support
Provides ongoing SIM plan checks, intelligent health alerts, and proactive service level response monitoring.
Warranty and Support
Comprehensive coverage and responsive assistance from our Sydney-based team.
3-Year Parts Warranty
2-Year Labour Warranty
Preventative Maintenance Plans
