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Algo 8180 SIP Audio Alerter Loud Ring and Paging Application
VoIP SIP weatherproof horn speaker for voice paging, loud ringing, and emergency / safety / security notification
This in-line ADSL filter has one RJ11 female port on one end and a RJ11 male connector on the other. It is used to filter out ADSL modem noise from a POTS phone signal.