The operator's perspective.
On VICIdial, SIP, and call-center ops.
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Operator writing, sorted newest first.
Pointing a subdomain at your cloud VICIdial box
Setting up a subdomain for your cloud VICIdial box is a straightforward DNS task, and getting it right unlocks a clean HTTPS agent URL and valid TLS certificates.
The BYOI install checklist
Before a managed host can install VICIdial on your own cloud server, a handful of prerequisites need to be in place - this checklist walks through each one in order.
How to run VICIdial on Azure
Microsoft Azure can host a VICIdial server, but the platform's NSG model, default outbound NAT, and storage options require more configuration steps than simpler cloud providers.
Choosing a cloud region for your dialer
The cloud region where you deploy your VICIdial box affects call quality, data residency, and cost - here is how to pick the right one for your operation.
Managing the firewall on a cloud dialer
A VICIdial cloud server's firewall needs ongoing attention - carrier IP changes, agent network shifts, and OS upgrades can all silently break SIP or RTP.
How to run VICIdial on DigitalOcean
DigitalOcean Droplets are a straightforward way to host VICIdial, but their firewall model, floating IPs, and thin default disk require a few deliberate choices before your dialer is production-ready.
How to run VICIdial on Vultr
Vultr's global footprint and straightforward firewall groups make it a capable host for VICIdial, provided you size the instance correctly and open the full RTP UDP range before your first campaign.
Cloud security groups for a VICIdial server
Cloud security groups default to blocking everything - this guide lists every port VICIdial and Asterisk need open and explains why each one matters.
Cloud vs on-premise VICIdial
Choosing between a cloud VPS and an on-premise server for VICIdial comes down to who controls the hardware, who handles the ops work, and where your calls actually travel.
How to run VICIdial on OVH
OVH gives you bare-metal-class dedicated servers and affordable VPS options for VICIdial, but the network and firewall defaults need careful tuning before your first call lands cleanly.
Keeping your leads and recordings on your own box
When you run VICIdial on a single-tenant server you own or supply, your lead data and call recordings stay on that machine - this post explains what that means in practice and how to protect it.
BYOI vs a fully managed VICIdial host
Comparing BYOI and a fully managed VICIdial host means weighing infrastructure control against operational simplicity - both models keep your data on a single-tenant server.
Opening the RTP port range on a cloud firewall
Cloud firewalls block inbound UDP by default, and a closed RTP port range is the most common reason VICIdial calls connect but carry no audio.
Sizing cloud disk for call recordings
Call recordings are the biggest disk consumer on a VICIdial box, and undersizing storage is one of the most common mistakes when moving to the cloud.
Scaling a cloud VICIdial box up for more agents
Vertical scaling on a cloud VICIdial box means resizing the VM to more vCPU and RAM, and understanding where VICIdial actually hits its limits before you resize.
Treating a cloud VICIdial box as rebuildable
The cloud mindset means designing your VICIdial setup so that destroying and recreating the server is a routine operation, not a crisis.
Free TLS certificates for a cloud VICIdial box
Let's Encrypt provides free, auto-renewing TLS certificates that secure the VICIdial agent and admin web interfaces over HTTPS on any cloud server.
Bring-your-own-infrastructure (BYOI) VICIdial explained
BYOI lets you supply your own cloud server while a managed host installs and operates VICIdial on it, giving you control over the hardware without taking on the full installation burden.
Cloud cost vs bare-metal for VICIdial
Choosing between cloud and bare-metal for VICIdial comes down to how predictable your load is and whether you can absorb upfront capital costs in exchange for lower long-term per-unit costs.
Keeping carrier latency low from the cloud
Cloud region placement has a direct effect on RTP path length and call quality - here is how to reduce carrier latency for your VICIdial box.
Cloud IP reputation and your outbound calls
A fresh cloud IP address may carry a poor spam reputation from previous tenants, which can hurt your answer rates and STIR/SHAKEN attestation.
Why your VICIdial cloud box needs a public IP
A cloud VICIdial server without a routable public IP will fail to exchange SIP and RTP traffic with carriers, leaving agents with no audio.
Fixing NAT one-way audio in the cloud
One-way audio on a cloud VICIdial server almost always means Asterisk is advertising its private IP in SDP instead of the routable public address.
Load balancing across VICIdial servers
Load balancing spreads agent and web traffic across telephony nodes in a VICIdial cluster. Here is what balances, what does not, and where the limits are.