<http://www.nfpa.org/itemdetailjournal.asp?categoryID=1890&itemID=44574>
square waves for the deaf mass notification systems new definition of 'telephone network' etc --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "massfire" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/massfire?hl=en -~----------~----~----~----~------~----~------~--~---
