Algo 8180 IP Paging and SIP Loud Ringer Audio Alerter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Network managed SIP endpoint</li><li>Dual purpose loud ringing and/or talkback voice paging</li><li>Significantly louder (eight to twenty times) than typical telephones</li><li>SoundSureTM ambient noise compensation adjusts output for noise level</li><li>Multicasting capability for wide area notification</li></ul></div><img src="http://ecx.images-amazon.com/images/I/5119gS%2B-CWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/511kuJki1YL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51rG98VocKL.jpg" noproxy>