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 invoice checks – for the whole contract term, not just until signature.
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.