RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

Voice over internet protocol (VoIP) E911 metro street address guide (MSAG) validation

  • US 8,913,983 B2
  • Filed: 05/03/2011
  • Issued: 12/16/2014
  • Est. Priority Date: 05/27/2005
  • Status: Active Grant
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