The Switzerland service allows you to receive calls :
1- Receive calls on your mobile phone by installing an application such as zoiper or media5fone.
2- Receive calls on your computer by installing softphone such as zoiper or xlite.
3- Forward calls to your current phone number, you will see the forwarding rates hier: https://hivoox.com/telephony-services/call-rates.html
4- Receive calls on your ip phone or voip pabx.