With Romulus you can make and receive calls directly from the app on your computer or smartphone. This guide explains how to place a call, how incoming calls work, and what actions are available during a conversation.
Before You Start
Make sure you have:
The Romulus app installed on your device (desktop or mobile)
At least one active phone number on your account
A working microphone with audio permissions granted to the app
A stable internet connection (Wi-Fi or mobile data)
Making an Outgoing Call
You can place a call in two ways from the Romulus app:
Option 1 — Dial pad
Open the dial pad in the app.
Type the number you want to call.
Press the green button to start the call.
Option 2 — Contact search
Search for a contact by name in your address book.
Tap or click the call button next to their name to start the call directly.
Receiving an Incoming Call
When a call comes in, the app displays a notification showing the caller's number or name (if they are saved in your contacts). Call notifications arrive even when the app is running in the background or the device is in standby.
Tap the green button to answer
Tap the red button to decline — the caller will be redirected to voicemail or the flow configured for your number
During a Call — Available Actions
While on a call, the following controls are available:
Action | What it does |
Mute | Disables your microphone — the caller cannot hear you |
Hold | Puts the caller on hold — they hear hold music until you resume |
Transfer | Transfers the call to another extension or external number (see below) |
Keypad | Opens a numeric keypad — useful for navigating external automated menus |
End call | Hangs up and ends the conversation |
Transferring a call
There are two ways to transfer a call:
Announced transfer — you speak with the recipient first to introduce the caller, then complete the transfer
Blind transfer — the call is transferred immediately, without prior notice to the recipient
Desktop vs Mobile
| Desktop (Windows / Mac) | Mobile (iOS / Android) |
App | Romulus desktop app | Romulus mobile app |
Incoming calls | Notification appears in the app or taskbar | Arrives as a standard phone call notification on your device |
Usage | Ideal for office use at your workstation | Ideal for staying reachable on the go |
Frequently Asked Questions
Do I need to be connected to the internet to make calls?
Yes. The Romulus app requires a stable internet connection — either Wi-Fi or mobile data — to make and receive calls.
What happens if I decline a call?
The caller is redirected to voicemail or to the call flow configured for your phone number.
Will I receive calls if the app is closed?
On mobile, incoming calls are delivered as standard phone notifications even when the app is in the background. On desktop, the app needs to be running to receive calls.
Can I transfer a call to a colleague?
Yes. During a call, use the Transfer option. You can choose between an announced transfer (you introduce the caller first) or a blind transfer (immediate, no prior notice).
I'm having audio issues during calls — what should I do?
Check that your microphone is working and that audio permissions are enabled for the Romulus app on your device. For more detailed troubleshooting, refer to the dedicated support article.