# Business telephony: IPBX or Cloud, migration and portability

On-premise or cloud: we size the system, port the numbers and train the teams. A local team, not a call centre.

Host Technology business telephony: on-premise or cloud IPBX, Yealink/Gigaset handsets, portability, softphones, multi-site. PACA and Monaco.

### Can we keep our numbers?

Yes. Number portability is handled end to end so service does not drop.

### On-premise PBX or cloud: how do we choose?

It depends on how much control, mobility and multi-site coverage you need. We advise after a line inventory.

### How long does a migration take?

From a few days to a few weeks, depending on line count and complexity.

### Does the phone system work from home?

Yes — softphone, mobile app or an IP desk phone at home, depending on the design.

### Can telephony connect to the CRM?

Yes — click-to-call, customer history and integrations that match your business tools.