Service · Telephony
Cloud phone systems: migrate before the old PBX forces you to
KHTC moves company telephony from ageing on-premise systems to the cloud, or straight into Microsoft Teams. We compare the relevant platforms, keep your numbers, design call flows with the people who use them and schedule the switch so customers never hear a difference. Provider-neutral, free of charge for you.
Typical problems we encounter
- the old PBX is end-of-life, spare parts are a lottery
- home office broke the “phone on the desk” model
- call flows nobody dares to touch
- platform marketing all sounds identical
- fear of losing numbers or reachability during migration
What KHTC delivers
- Requirements workshop: queues, groups, opening hours, integrations, captured with the teams who live in them.
- Platform comparison: established cloud PBX providers and Teams telephony, priced and rated for your case.
- Number & porting plan: every number accounted for, ported without a silent minute.
- Migration & training: parallel operation, cut-over outside business hours, short onboarding for the team.
- Operations support: changes, new users and incident escalation, afterwards, too.
How it works
- 1 · Understand: We review your contracts, invoices and requirements, across every provider, with no obligation.
- 2 · Compare: You get a written comparison of what the market offers for your situation, including “keep what you have” when that wins.
- 3 · Implement: We negotiate, order, port and migrate, coordinated so your operations never stand still.
- 4 · Support: One dedicated contact for incidents, changes and renewals, for the whole contract term, not just until signature. Ongoing invoice auditing is available as a bookable add-on.
Who this is for
- companies replacing an end-of-life PBX
- hybrid and remote teams
- Microsoft-365 organisations
- multi-site setups wanting one system
Cloud PBX or Microsoft Teams calling?
If your organisation lives in Microsoft 365, adding calling to Teams is often the cleanest path, one client, one directory. Dedicated cloud PBX platforms win when contact-centre features, complex call flows or analogue special cases matter. We price both honestly; see also our dedicated page on Teams calling.
From the field
The riskiest moment of a phone migration is not the technology, it is the unowned cut-over date. We own it.
FAQ: cloud phone systems
Short answers, happy to go deeper in a personal conversation.
Will customers notice the migration?
No, that is the design goal. Numbers are ported at a scheduled moment, the old system stays live until the new one is confirmed, and cut-over happens outside your business hours.
Can we keep all our numbers?
Yes. German number portability covers business ranges; we plan and track every single extension.
What happens to fax, door intercoms and alarm lines?
The classic special cases, we inventory them early and provide adapters, ATAs or replacement services so nothing falls off the wall unnoticed.
What does it cost?
The consulting nothing, provider-funded. The platform licences you pay are the same you would pay direct; we negotiate the conditions.
Free telecom audit for this area
We review contracts and invoices and give you a written summary of what is possible, no obligation, no forced switch.