Journal
Field notes and technical insights.
September 2026
qaryon is officially launched
qaryon is incorporated, insured, in production, and already billing B2B telecom and pragmatic AI consulting work.
On a SIP trunk, security is not a deployment option, it is a contractual responsibility
Toll fraud, STIR/SHAKEN, mTLS, SBC hardening. What protects a SIP trunk in 2026, layer by layer, with the configurations and the checklist.
sipsecurityvoipsbctelecom
August 2026
Isolating a VoIP datacenter in broad daylight, without dropping a call
Working on a datacenter during business hours without cutting a customer. The drain runs through DNS, not the SBC: pull the IP, let sessions finish, restore by mirroring. The real trap is the TTL.
dnsn8nvoipsbctelecom
In UCaaS, the question isn't which solution, it's who reads your communications
A UCaaS roundup compares features. In the field, what decides is size, cost, and above all what the platform lets itself do with your data. RingCentral asks for access to your recordings and your private messages. This client moved to Wazo.
ucaasmicrosoftsouveraineteintegrateurtelecom
In SIP, what's negotiated isn't what's supported
Three trunks that refused to place a call between two vendors. In all three, a peer signaled one thing and did another.
sipsbcinteropaudiocodestelecom
I don't automate the decision, I automate the fact that it expires
A CVE lands on a component you run. The faulty dependency was fixed upstream weeks ago, but the image publisher never rebuilt. You can't patch, you can't ship, and you can't forget. What happens next doesn't delegate to a model, and it's the best explanation I know of what AI cannot do.
securityautomationaisbctelecom