VoIP · Cloud Comms
Cloud PBX Infrastructure
Migration from legacy on-premise PBX to a managed cloud calling platform.
FreePBXAsteriskKamailioLinuxDockerGrafana
Industry
Enterprise
Category
VoIP · Cloud Comms
Project Overview
We migrated an organization's telephony from legacy on-premise PBX hardware to a managed cloud calling platform, unifying branches onto one system with centralized call routing and analytics.
The Problem
Aging on-premise PBX hardware with no remote support, unstable trunk lines and rising maintenance costs across branches, with no central visibility into call activity for management.
Our Solution
- Cloud PBX core deployed for high availability
- SIP trunking with carrier failover for connectivity resilience
- Softphones, IP phones and mobile apps unified on one system
- Centralized call analytics and monitoring
Technologies Used
FR
FreePBX
AS
Asterisk
KA
Kamailio
LI
Linux
DO
Docker
GR
Grafana
PR
Prometheus
CL
Cloudflare
System Architecture
Layer 01
Users (IP / Softphone)
Layer 02
Edge SBC
Layer 03
Kamailio Routing
Layer 04
Asterisk Cluster
Layer 05
Carrier Trunks
Layer 06
Grafana Analytics
Logical data + control flow across the deployed system
Features Implemented
Cloud PBX core
SIP trunking
IVR & call routing
Call recording
Call analytics
Mobile softphone
Results & Impact
Multi-branch
Users migrated
Reduced
Telephony cost
Active-active
SIP failover
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