How a softphone works
The softphone registers with the company PBX or cloud-based exchange using SIP login credentials, server address, username and password. After registration, it functions as a full-fledged extension with its own number.
Typical functions of a softphone:
- Making and receiving calls
- Hold and transfer to another branch or number
- Conference calls
- Display of colleagues' status: BLF (Busy Lamp Field, occupancy indicator)
- Call recording, if supported by the PBX
When a softphone pays off
Softphones are an ideal choice in these situations:
- Home office and working on the go - The company number works anywhere with an internet connection.
- Rapid commissioning - a new employee is operational immediately, without waiting for delivery of a physical phone
- Savings on hardware - eliminates the need to purchase and manage IP phones
- Integration with a computer - employees working at a computer all day will appreciate calls directly in their work environment without switching to a physical device.
What to watch out for when using a softphone
Call quality depends on your internet connection and device performance. On a computer, we recommend using headphones with a microphone instead of the built-in one to eliminate echo and background noise.
With the mobile softphone, ongoing calls may be interrupted when switching between Wi-Fi and mobile data. The solution is to stay on a stable Wi-Fi connection or to have backup call forwarding configured.
Most Cloud PBX systems today provide login credentials compatible with standard SIP clients, at virtualni-ustredna.cz you enter these details into any softphone and are ready to make calls.
Frequently Asked Questions
What is the difference between a softphone and calling via a mobile phone?
A mobile phone makes calls via the operator's GSM network. A softphone on a mobile device calls over the internet (VoIP/SIP) and uses a company number assigned by the Virtuální ústředna, regardless of your physical location.
Do I have to pay call charges when using a softphone?
Internal calls between branches are usually free. Calls to external numbers are billed according to the SIP trunk tariff: typically significantly cheaper than standard mobile or landline rates.
Does the softphone work abroad too?
Yes, the softphone works anywhere with an internet connection. Calls from abroad are no different from calls made from the office, and roaming has no effect on call costs.