The Yealink MP54 E2 Teams VOIP phone can basically be used with different networks and service providers, but the compatibility with Swisscom depends on the specific configuration and the requirements of the provider.

- The phone supports SIP and Teams protocols, which makes it flexible for different VoIP services.
- It also offers hybrid mode functions that support both Teams and SIP protocols simultaneously.

To ensure that the phone is compatible with Swisscom, you should check Swisscom's specific requirements and configuration instructions and consult Swisscom or Yealink customer service if necessary.