VoIP & Cloud Phone Systems for Toronto, Oakville & Burlington Businesses
VoIP & Cloud Phone Systems for Toronto, Oakville & Burlington Businesses. Group 4 Networks provides managed IT and cybersecurity support for Toronto and GTA businesses. Call (416) 623-9677.
VoIP (Voice over Internet Protocol) is the technology that carries voice calls over your internet connection rather than traditional phone lines. A hosted PBX is a complete cloud-based phone system that uses VoIP — it includes the call routing software, auto-attendant, voicemail, and management portal that would traditionally live on a physical PBX server on your premises. With a hosted PBX in Oakville or Burlington, there is no on-site server hardware; everything runs in the cloud and is managed by your VoIP provider.
Unlike national carriers or online-only VoIP providers, Group 4 Networks is a local managed IT provider. That means you get on-site setup, direct technician access, and VoIP support that's part of your overall IT management — not a separate vendor relationship. We integrate your phone system with your Microsoft 365, CRM, and help desk tools, and we're accountable for the full experience: network, phones, and software.
Each active VoIP call uses approximately 85–100 kbps of bandwidth with standard G.711 codec. A 20-person office with up to 10 simultaneous calls needs roughly 1 Mbps dedicated to VoIP — easily achievable with business broadband. We conduct a network readiness assessment before deployment and configure QoS (Quality of Service) rules on your router to prioritize voice traffic over other internet activity.
Yes. We specialize in VoIP implementation in Brampton for multi-site businesses. Our hosted PBX platform connects all your locations under a single phone system — shared extensions, centralized call routing, and unified voicemail across Toronto, Brampton, Oakville, and Burlington. Each location connects over its own internet connection; calls between locations are free.
Yes. We port your existing business numbers — including local Oakville (905-847, 905-842), Burlington (905-632, 905-681), Brampton, and Toronto numbers — to the new hosted VoIP system. The porting process typically takes 5–10 business days, and we coordinate a same-day cutover to ensure zero downtime for your business.
Burlington businesses deserve a VoIP provider that's local, accountable, and responsive. Oakville businesses looking for reliable business phone service providers in Oakville will find Group 4 Networks offers on-site setup, training, and direct technician access — not a call-centre ticket queue.