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Mobile Business Phone System

A native connector of the cellular network to any business phone system

UCaaS solutions allow the integration of fixed and mobile telephony via an application that uses the Internet. MS Teams, Rainbow, 3CX, Wildix, many collaboration solutions facilitate hybrid work and mobility.

OpenSIM Revolution integrates the GSM network with these collaborative solutions to bring additional value: Deploy your mobile fleet on your PBX like any other IP phone.

A few figures

The mobile trend in France

  • 41.9
    million people over the age of 11 have a mobile phone in France
  • 75%
    of calls are made from a mobile phone
  • 88%
    of individuals with a mobile phone in France use the mobile Internet every day
  • 89%
    of time spent on a smartphone is spent using applications
Accompanying partners

Our local partners, the key to your success

Hybrid work is becoming part of our habits and impacting our working methods. Mobile productivity, remote collaboration, traceability of employee activity in the office and at home… hybrid work is changing the issues facing companies and putting telecommunication tools at the heart of business productivity.

Which collaboration solutions should you choose? How to track all employee calls, even those made from mobile phones? How to adapt the operator network to optimise the reachability of each employee, even when working from home? Let our partners guide you in finding the ideal solution for you and train you in the new uses.

The local partner will enable you to :

  • Optimise user satisfaction
  • Optimise productivity in hybrid work situations
  • Avoid service interruptions
  • Encourage the adoption of the new solution

Thanks to our manufacturer certification program, your partner will guarantee the compatibility of your PBX with OpenSIM Revolution. Find all certified manufacturers!


Your benefits

Ensure traceability of all mobile fleet calls during working hours
Integrate GSM network calls into your PBX analysis and reporting tools
Benefit from a competitively priced alternative to DECT with compatibility for all types of mobile phones, from rugged smartphones to 2G mobile phones
Eliminate call quality issues when the mobile phone is connected to the corporate wifi network
Include mobile calls in the presence of your collaborative tools
Improve the reachability of your employees on the move by allowing them to receive business calls in the absence of a data connection and without call forwarding
Ensure that no mobile answering machine in your fleet picks up a call in a queue by mistake
Allow your users to disconnect from work by managing a business and private mode
Enable native mobile usage without losing call traceability
Advanced features


2 numbers on one SIM card
The OpenSIM Revolution card embeds a virtual phone considered as a terminal by your PBX, so it carries 2 numbers, a fixed number and a mobile number.
Native use of the mobile
Calls received on your landline number ring on your mobile using the GSM network, without call transfer. You use the native dialer of the mobile to make your calls and you present your fixed number.
Compatible terminals
eploy all types of mobile terminals on your corporate telephony: Android, IoS, hardened Smartphone, 2G phone, fixed SIM card phone.
Integration of mobile presence
When you call with the GSM mobile network, your PBX sees it and you appear online to your employees.
Traceability of mobile fleet calls
Calls from the mobile phone are routed through your fixed line telephone system, ensuring that calls are traceable during working hours.
Privacy management
Disconnect the user from the company phone, according to business hours, and promote a better balance between work and personal life.
Integration with existing telephony
You keep your telephone installation, you just need an OpenSIM Revolution subscription and the SIP Trunk Touch from OpenIP to benefit from the service.
Bring your own device
Encourage your employees to use their own handsets by offering them to port their mobile number to OpenSIM Revolution. You can choose to exclude calls received on the mobile number from company telephony.
Your professional identity
You always present the number set up on the PBX, regardless of whether the call is made from the PC, mobile or IP phone.
The single responder
Your answering machine will always be the one on the PBX during working hours, regardless of whether the call is to your fixed or mobile number. You have a single business answering machine. You also have an answering machine on your mobile line for personal time.
Internal numbering
Use the short codes of your PBX to reach your colleagues from the native dialer of your mobile!
Call transfer
You can transfer a call from your mobile. Since internal dialling is compatible with OpenSIM Revolution, you can even transfer a call to a colleague using their short code.
Code star features
If the functionality is available from a standard softphone, it will also be available from the mobile. These features vary between PBXs.
Without commitment
You can change your package during the month at no extra cost. You will receive SMS alerts to monitor your Internet data consumption during the month, allowing you to change your package reactively if your needs change.
When you subscribe, choose the network that suits you: Orange, SFR or Bouygues. You can then change networks to suit your coverage and needs independently.
SIM card
A single SIM card for all 3 operator networks. The SIM card is in a triple cut-out format, allowing it to be adapted to the use of any mobile phone.
Your MyOpenIP tool

MyOpenIP, your monitoring tool

Our MyOpenIP application allows you to manage your business mobile packages in complete autonomy thanks to numerous functionalities: activation or change of packages, change of operator, consultation and management of your consumption, integration of the mobile fleet with the company telephony and many others!
More about MyOpenIP
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