| Property Type | Single-family home or small office with one main entrance | One outdoor video station, one indoor monitor or mobile application, and an IP-controlled door lock | Confirm that the entrance has suitable power, network coverage, and a weather-protected mounting position. | High |
| Property Type | Apartment building, student residence, or multi-tenant property | Multi-tenant entrance panel with directory management, individual resident calling, indoor stations, or mobile credentials | Check the number of units, directory capacity, tenant administration, visitor call routing, and access permissions. | High |
| Number of Entrances | One to two controlled entrances | Centralized management for the main entrance, pedestrian gate, or service entrance | Verify relay outputs, door-sensor inputs, request-to-exit connections, and whether each entrance needs independent schedules. | High |
| Number of Users | Up to approximately 10 regular users | Basic user directory with PIN, card, mobile credential, or temporary visitor access | Choose a system that supports user removal, credential replacement, event logs, and different administrator permissions. | Medium |
| Number of Users | More than approximately 50 residents, employees, or authorized users | Centralized user database with bulk enrollment, role-based access, audit records, and scheduled permissions | Confirm database capacity, management software support, directory search speed, and integration with existing access-control procedures. | High |
| Visitor Management | Frequent deliveries, contractors, guests, or temporary visitors | Two-way video, remote unlock, time-limited credentials, visitor call forwarding, and event recording | Define visitor approval rules, notification recipients, privacy requirements, and how temporary credentials expire. | High |
| Video and Audio | Need to identify visitors in daylight and low-light conditions | Wide-angle camera, infrared or white-light assistance, echo-reduced two-way audio, and adequate image resolution | Camera performance depends on lighting, viewing angle, backlight, mounting height, and the distance between the visitor and camera. | High |
| Network Availability | Reliable Ethernet network is available near the entrance | Wired IP connection, preferably with Power over Ethernet where compatible | Use appropriate structured cabling, check switch power capacity, label cable runs, and separate critical devices from congested networks. | High |
| Network Availability | No cable is available at the entrance, but stable wireless coverage exists | Wireless video station or wireless indoor monitor, with local power and a backup communication plan | Test signal strength at the exact mounting point; metal doors, concrete walls, and electrical equipment can reduce wireless reliability. | High |
| Power Conditions | Power outages or unstable electrical supply are possible | Equipment connected to protected power, with backup power for network equipment and critical access hardware | Determine the required runtime, startup behavior after power restoration, fail-safe or fail-secure locking behavior, and emergency egress requirements. | High |
| Cable Distance | Standard copper Ethernet run within the normal channel limit | Direct Ethernet or PoE connection using properly installed twisted-pair cabling | For permanent copper Ethernet links, the commonly used channel limit is up to 100 metres, including patch connections. Longer routes may require fiber or an intermediate network device. | High |
| Outdoor Environment | Entrance is exposed to rain, dust, sunlight, or temperature changes | Outdoor-rated station with sealed housing, drainage consideration, and suitable operating-temperature specifications | Check the enclosure rating, sun exposure, condensation risk, vandal resistance, mounting surface, and protection from direct water flow. | High |
| Building Structure | Concrete walls, metal frames, long corridors, or multiple floors | Wired backbone, carefully planned network distribution, and possible fiber uplinks between building sections | Perform a cable-route survey before installation. Thick walls and metal structures can affect wireless signals and increase installation complexity. | High |
| Integration Needs | Existing CCTV, access control, alarm, elevator, or building-management systems are present | System with documented network interfaces, relay inputs and outputs, event notifications, and supported integration methods | Confirm compatibility before purchase, including API availability, SIP support where required, event formats, and responsibility for integration configuration. | Medium |
| Security Requirements | Property requires stronger protection against unauthorized access | Encrypted communication, administrator roles, strong credentials, multi-factor options where available, and detailed access logs | Change default passwords, restrict management access, apply security updates, segment the system network, and review logs regularly. | High |
| Privacy Requirements | Video, audio, visitor records, or access events are stored | Configurable recording, retention controls, user permissions, privacy notices, and restricted playback access | Define the purpose and retention period for recordings and follow applicable privacy, employment, and surveillance regulations. | High |
| Accessibility | Children, older adults, wheelchair users, or hearing-impaired users may operate the system | Clearly visible call buttons, readable labels, suitable mounting height, adjustable audio, and visual status indicators | Consider reach range, glare, background noise, tactile feedback, door opening time, and local accessibility requirements. | Medium |
| Maintenance and Support | Property has limited technical staff or requires high availability | Remote diagnostics, health monitoring, replaceable components, configuration backup, and documented maintenance procedures | Evaluate firmware-update procedures, warranty terms, spare-part availability, service response, and recovery after device replacement. | Medium |
| Future Expansion | Additional entrances, users, cameras, or buildings may be added later | Scalable management platform with sufficient device, user, and license capacity | Confirm expansion costs, network bandwidth, storage requirements, software limits, and whether mixed-generation devices can operate together. | Medium |