LANCOM 1803VA-4G router

SD-WAN VoIP gateway with VDSL and 4G. The LANCOM 1803VA-4G is an SD-WAN enabled branch router designed for small and medium-sized businesses that require high availability and interface diversity. It provides automatic backup over 4G if the wired VDSL or fiber link fails and supports IPSec VPN and SD-WAN for secure site-to-site and remote-worker connectivity. Integration with the LANCOM Management Cloud (LMC) and built-in telephony features make it suitable for professional site networking and voice services.

Advantages

The LANCOM 1803VA-4G combines SD-WAN management, VDSL Supervectoring and an LTE Advanced (Cat. 6) modem to ensure uninterrupted connectivity and flexible WAN routing. Centralized orchestration via the LANCOM Management Cloud enables automated secure VPN setup, load balancing across multiple WAN links and dynamic traffic steering. Built-in telephony management (VCM) supports SIP, ISDN and analog devices and provides session border control functions. The device is produced primarily in Germany and includes security features and lifecycle updates that support long-term operation and digital sovereignty.

Key specifications

• SD-WAN gateway with LANCOM Management Cloud integration
• VDSL Supervectoring support; backwards compatible with VDSL2 and ADSL2+
• LTE Advanced modem (Cat. 6): up to 300 Mbps down / up to 50 Mbps up
• Five integrated IPSec VPN channels (expandable to 25 with LANCOM VPN Option)
• High Scalability VPN (HSVPN) and Advanced Mesh VPN
• Active/active multi-WAN load balancing; Dynamic Path Selection and Dynamic Traffic Steering
• Stateful inspection firewall with intrusion prevention and DoS protection
• Logical network segmentation via ARF and VLAN
• Voice Call Manager (VCM) with SIP proxy, QoS and SBC-like functions
• Flexible mounting: table, rack or wall

How to use

Install the LANCOM 1803VA-4G in the desired location using table, wall or rack mounting and connect the VDSL/ADSL or fiber WAN and LAN interfaces. Insert a compatible SIM for cellular backup and configure the device centrally in the LANCOM Management Cloud to automate Auto‑VPN and SD‑WAN policies. Define VPN channels and telephony settings in the VCM to integrate SIP, ISDN or analog endpoints. Use the SD‑WAN controls to set priority rules, dynamic traffic steering and load‑balancing across available WAN links. Regularly apply firmware updates from LANCOM to maintain security and feature updates.

Recommendations

For reliable failover and best performance, provision a dedicated SIM with a business data plan, enable active/active multi‑WAN and configure Quality of Service for voice traffic. Use the LANCOM Management Cloud to centralize policy deployment and keep the device firmware up to date to benefit from security patches and new features.