Swissvoice Xtra Doorbell 8155 calls your Swissvoice Xtra 2155 or Swissvoice Xtra 3155 DECT phone. You can choose up to 5 different levels. You can also choose between 3 answering modes. The Swissvoice Xtra Doorbell 8155 is exclusively for Swissvoice Xtra 2155 and Xtra 3155 DECT phones.
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