Migration to 5G Business Internet Using Teltonika RUTM50 for Toast POS, VoIP, and Guest Wi-Fi in a Restaurant

Migration to 5G Business Internet Using Teltonika RUTM50 for Toast POS, VoIP, and Guest Wi-Fi in a Restaurant

Overview

This document outlines the deployment of a 5G business internet solution using the Teltonika RUTM50 router to support a restaurant’s Toast POS system, VoIP phone services, and a segregated Guest Wi-Fi network. The goal is to fully replace traditional broadband and landline phone services while maintaining high reliability, security, and performance.

Stakeholders

  • Restaurant Owner/Manager – Oversees operations
  • IT/Networking Provider – Configures and maintains network infrastructure
  • Toast POS Support – Ensures POS connectivity and uptime
  • VoIP Provider – Supports call quality and phone provisioning
  • 5G Internet Provider – Supplies 5G SIM/data plan

Goals & Objectives

  • Provide fast and reliable 5G internet to support:
    • Toast POS operations
    • VoIP phone systems
    • Public Guest Wi-Fi, isolated from internal systems
  • Eliminate legacy ISP connections and landlines
  • Ensure network segmentation and security
  • Maintain business continuity with failover and remote access

System Components

Hardware

  • Teltonika RUTM50 5G Router
    • Dual SIM 5G/4G failover
    • Multiple LAN/WAN ports
    • Dual-band Wi-Fi
    • VLAN and firewall support
  • Toast POS Terminals
    • Tablets or kiosks (Wi-Fi or wired)
  • VoIP Phones or ATAs
    • SIP-enabled or analog with adapters

Services

  • Toast Cloud Services
  • SIP VoIP Phone Service Provider (e.g., 8x8, RingCentral)
  • Teltonika RMS (optional for remote monitoring)

Network Architecture

  • VLAN 10: Business network for POS terminals
  • VLAN 20: VoIP phone system with QoS
  • VLAN 30: Guest Wi-Fi – isolated from VLAN 10/20
  • Firewall rules prevent traffic from Guest to POS/VoIP networks

Configuration Steps

Router & Network Setup

  1. Insert 5G SIM card(s) and configure APN via WebUI.
  2. Set up Wi-Fi SSIDs:
    1. POS_Network (hidden or secure for business use)
    2. Guest_WiFi (isolated, bandwidth-limited)
  3. Configure VLANs:
    1. VLAN 10 for POS
    2. VLAN 20 for VoIP
    3. VLAN 30 for Guest
  4. Apply firewall rules:
    1. Block VLAN 30 (Guest) from accessing VLAN 10/20
    2. Allow internet access for VLAN 30
  5. Enable QoS:
    1. Prioritize VoIP SIP traffic on VLAN 20
  6. Configure failover to backup SIM or WAN
  7. Optional: Enable RMS for monitoring

POS Configuration

  1. Connect POS terminals to POS_Network or Ethernet (VLAN 10).
  2. Ensure internet access and backend sync with Toast cloud.
  3. Test transaction times and device syncing.

VoIP Configuration

  1. Provision SIP phones with credentials.
  2. Assign phones to VLAN 20 via static IP or DHCP.
  3. Test voice quality, call routing, and SIP registration.
  4. Enable or disable SIP ALG depending on provider.

Guest Wi-Fi Setup

  1. Configure SSID: Guest_WiFi on VLAN 30.
  2. Apply:
    1. Bandwidth limits per user/device
    2. Content filtering if desired
    3. Session timeouts (e.g., 2 hrs)
  3. Isolate guest network using AP/client isolation + firewall rules.

Benefits

  • High-performance 5G internet tailored for business use
  • Toast POS and VoIP isolated from guest traffic
  • Improved security via VLANs and firewalls
  • Lower operational costs with no ISP or landline
  • Remote management via Teltonika RMS
  • Guest satisfaction with free, safe Wi-Fi

Risk and Mitigation

 

Risk

 Mitigation
5G signal instability Install external MIMO antenna
VoIP call issues Enable QoS and monitor jitter/latency
Guest misuse of bandwidth Enforce bandwidth caps on VLAN 30
Device configuration errors Use templates and backups in RMS
SIM data cap overages Use enterprise data plan or alerts

 

Maintenance & Monitoring

  • Monitor router and VLAN activity via RMS or WebUI
  • Run regular speed and call quality tests
  • Check data usage and enforce guest usage limits
  • Schedule firmware updates for RUTM50
  • Keep documentation of VLAN assignments and credentials

Conclusion

Implementing a 5G network with Teltonika RUTM50 in a restaurant provides fast, reliable internet tailored for POS, VoIP, and Guest Wi-Fi, without relying on outdated infrastructure. Proper segmentation and prioritization ensure business systems remain secure and stable, while offering a better experience for guests.

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