Cloud phone system
Professional telephony from the cloud.
onesrv CX is the cloud phone system from onesrv. Design call flows effortlessly in the web dashboard, and make calls with elegant apps for iPhone and Mac or on a desk phone. We take care of setup and maintenance.
Access is available through our sales team.
- Runs in Frankfurt
- Apps for iPhone and Mac
- Setup by onesrv
Easy to manage. Reachable anywhere.
onesrv CX brings together a powerful phone system and an experience that is a joy to use – in the office, at home and on the road.
Call flows
Call flows, clearer than ever.
In the visual editor you design how incoming calls are handled – check opening hours, play a voice menu, route to the right group. Every step shows at a glance what happens next – for every outcome.
- Schedules with opening hours and holidays
- Voice menus and announcements
- Targets such as group, queue, voicemail or conference room
Apps
Your phone system. On iPhone and Mac.
The native apps bring your company phone system to wherever you work – internally by extension, externally with your company number. Calls reach you anytime, even with the app closed.
- Company directory with presence
- Hold, swap, conference and transfer
- Call history and voicemail on all devices
Groups and queues
So customers always get through.
Groups ring several employees at once – on a desk phone, on the Mac or on the iPhone. And when it gets busy, a queue connects callers in order and greets them with an announcement.
- One number for several employees
- Configurable ring order
- Queue log-in and log-out in the app
Also included
Runs in Frankfurt
Your system runs in our data centre in Frankfurt am Main, on 100 % green power.
Desk phones
Common SIP desk phones and DECT systems can be used alongside the apps.
Setup by onesrv
We set up your system and are available in person by phone and e-mail for any questions.
Maintenance and backups
We take care of updates, monitoring and daily backups of your system.
Our CX plans
Every plan includes the full onesrv CX feature set – with the apps, AI and maintenance. The plans differ in size and service.
CX Basic
Everything you need to get started.
- Users
- Up to 10
- Concurrent calls
- 4
- AI credits
- Standard
- The full feature setEvery onesrv CX feature, including the apps and AI.
- Free initial setupWe set up your entire system for you.
- Personal supportBy e-mail and phone during business hours.
CX Business
The best value. For growing teams.
- Users
- Up to 25
- Concurrent calls
- 10
- AI credits
- Extended
- Everything in CX Basic
- Number serviceWe order new phone numbers and set them up for you.
CX Business Pro
For large teams – with priority support and on-site service.
- Users
- Unlimited
- Concurrent calls
- 20
- AI credits
- Maximum
- Everything in CX Business
- Priority supportYour requests are handled first.
- On-site serviceHelp with devices and faults on site, with limits – details in the offer.
Included in every plan
- Visual call flow editor
- Groups, queues and voice menus
- Conference rooms and voicemail
- Apps for iPhone and Mac
- Web dashboard for the entire system
- Call recording
- AI announcements, generated from text – AI credits depend on the plan
- Connect AI assistants like Claude via MCP
- Two-factor sign-in
- Updates, monitoring and daily backups
Prices per system, net plus VAT, 12-month minimum term. Phone numbers and call charges are not included. Need more users or calls? We are happy to put together a custom package for you.
Questions about onesrv CX
How do we get access?
For now we give out access only through our sales team, so we can look after every setup in person.
Where does onesrv CX run?
Your system runs in our data centre in Frankfurt am Main. On site you only need an internet connection and your devices.
Which devices are supported?
The apps for iPhone (iOS 26.1 or later) and Mac (macOS 26 or later), as well as common SIP desk phones and DECT systems. We are happy to advise you on the choice.
How soon is the system ready to use?
Usually within a few working days.
Request access
Book an appointment with our sales team or call us. We will present onesrv CX and discuss your requirements.
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Or directly: 06136 7960 591 · info [at] onesrv [dot] net