Telephone Loud Ringers and Loud Ringing Solutions
Adding an external loud ringer to a telephone system can ensure that telephone rings are clearly heard and calls consistently answered. Ideal for use in noisy work environments or for the hard-of-hearing, loud phone ringers help relieve the stress - and cost - of missed calls (see Primer on Telephone Loud Ringing).
Algo has manufactured loud ringing solutions for over twenty years and currently offers a number of products that can be used across a wide range of telephone systems including SIP, analog, and Nortel.
Loud Ringing Product Listing

8180 SIP Audio Alerter
The 8180 SIP Audio Alerter is a SIP compliant PoE audio device optimized for alerting and voice (VoIP) applications. It has an integrated amplifier, high quality speaker, and internal memory and offers exceptional loud ringing, voice announcement, and event notification capabilities. For paging, the 8180 can play multicast announcements or be configured as an auto-answer and page SIP telephone using its internal speaker.
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1825 Duet Plus
A multi-application loud ringer and paging amplifier, the 1825 features a non-irritating and highly effective warble tone output that is ideal for general office or small plant applications. The unit is compatible with dry contact closure, analog telephones, FXS ports, and Nortel digital telephones including Norstar, Business Communication Manager (BCM), Meridian 1, and Communication Server 1000 (CS 1000).
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1185 Horn Speaker
A 20 watt weatherproof loudspeaker for telephone loud ringing and paging notification, the 1185 is ideal for plant floors, warehouses, outdoor applications, and other low to moderate noise environments. Compatible with Algo 1825 Duet Plus Loud Ringer and 8180 SIP Audio Alerter.
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