Yes, you can use Romulus abroad.
Romulus uses the internet for calls, not the traditional phone network. This means it does not matter where you are physically — as long as you have a stable internet connection, you can make and receive calls on your business number exactly as if you were in the office.
What you need
A stable WiFi or mobile data connection
The Romulus app installed and up to date
No additional setup required
Costs
Calls to numbers included in your Romulus plan remain unchanged even when you are abroad.
⚠️ Watch out for roaming charges: if you use mobile data abroad, costs depend on your personal mobile operator. We recommend checking your plan conditions before travelling, or connecting to a WiFi network to avoid unexpected charges.