Structured first call
30 minutes to qualify the context, urgency, affected platforms, and decision constraints.
One senior telecom expert,
from scoping to production.
I design, deploy, and run your unified communications infrastructure.
Services
What I do, concretely
VoIP & UC Architecture
I audit your existing setup and design the target architecture
Technical Audit
I measure QoS, security, and compliance across your platforms
Training
Your team becomes self-sufficient on Teams Voice, SBC, and SIP
Strategic Advisory
I write the specs and evaluate solutions on the market
Migration & Deployment
From scoping to go-live, I run the project and the cutover
Custom
Hybrid environments, multi-vendor, atypical problems
What you need to decide quickly
Before configuration work starts, we clarify risk, access, data handling, and the expected outcome.
What happens after contact
- 1Qualify the need, urgency, and platforms involved.
- 2Propose the first action: short diagnosis, scoping workshop, audit, or project mission.
- 3Confirm deliverables, responsibilities, access, and confidentiality before kickoff.
Confidentiality & security
NDA available, least-privilege access, shareable deliverables for your teams, and no customer data exposed without approval.
Clear administrative frame
Nicolas Marxer EI, SIRET and professional liability insurance are public; quote and mission scope are agreed before work starts.
Controlled data & processors
Forms are used to respond or manage a waitlist. Resend handles delivery, and audience measurement uses Umami.
Why qaryon
No middleman
You talk to the one doing the work. Same person from scoping to production
14+ years of field experience since 2012
Real deliverables, not slides
Every engagement produces usable output: configurations, technical documentation, knowledge transfer
Runbooks technical deliverables provided on every engagement
From architecture to operations
I don't just recommend. I architect, deploy, and optimize. If it breaks, that's on me
500+ UC/VoIP project-days delivered
Platforms & Ecosystems
Deployed in production, not just read the docs
Microsoft TeamsUCaaS
RingCentralUCaaS / CCaaS
ZoomUCaaS / CCaaS
Cisco WebexUCaaS / CCaaS
3CXUCaaS
YeastarUCaaS
Istra (Centile)UC on-premise
Isi-comCC on-premise
AudioCodesSBC / Gateway
RibbonSBC / Gateway
AsteriskOpen Source
KamailioOpen Source
Coming soon: a platform for telecom integrators
A SaaS tool to manage, deploy, and monitor telecom infrastructure. Under active development.
Learn more about the projectField feedback
Anonymized examples synthesized from real field situations.
“We had a complex SIP legacy with three different vendors. Nicolas mapped the existing setup and proposed a convergence architecture that held up. No surprises at deployment.”
“9,000 RingCentral endpoints migrated across 45 sites in 4 months. Not a single critical ticket in production.”
“Our engineers are autonomous on Teams Voice after two training sessions. We no longer call vendor support for standard cases.”
Got a telecom project?
Technical question, new project, or one-off need — let's schedule a conversation
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