Gigaset GIGASET-C530IP Cordless Hybrid Expandable Phone for IP or Landline Calls Hybrid Technology Allows Both Landline and IP Calls Supports up to 4 Calls in Parallel with Multiple Handsets (3 VoIP + 1 PSTN) Expandable up to 6 Cordless Handsets and 6 VoIP Accounts HD Voice for IP Calls 1.8 Inch High Resolution Color Display NOTE: This phone is not compatible or made to use with Skype