Pay and load the ticket directly onto your phone's NFC chip or a Navigo Easy card . 2. SIP Software (For Internet Calling) Navigo Day Pass - Ile-de-France Mobilités
The is a one-day unlimited travel pass for the Paris metro, RER, and bus networks.
The phrase "" likely refers to a combination of two distinct travel and communication needs: the Mobilis one-day transit pass for Paris and SIP (Session Initiation Protocol) software for making calls over the internet .