SIP Credentials

SIP credentials allow you to use your Swisscom fixed network number on third-party devices and VoIP clients, as well as Swisscom SIP telephones, anywhere in the world. Once the credentials are set up, calls will be charged to your fixed network subscription. The costs are identical to normal fixed network calls.

SIP credentials consist of user name, authentication name and password. Keep these details confidential so that nobody else can make calls at your expense.

• SIP credentials allow you to use your fixed network number on third-party devices and VoIP clients, and Swisscom SIP telephones, anywhere in the world. 
• Local SIP telephony only works if compatible devices and VoIP clients are directly connected to the Swisscom router in your home.

Restart the Swisscom router.

Go to device instructions

To do this, set up the SIP credentials for the selected telephone number on the device. Automatic support for nomadic use ceased on 3 May 2021.

Setting up SIP credentials

The costs are identical to normal fixed network calls. They are charged according to your fixed network subscription.

If you use a mobile app to make calls, you may have to pay additional roaming charges while abroad. In this case, we recommend that you buy a data package.

Go to the SIP credentials in My Swisscom(opens in new tab) and select “Update”.