https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
Viking Electronics Rugged E-32 Call Box

Viking Electronics Rugged E-32 Call Box

Viking Electronics
Region: United States of America
Update: 11/14/2017
Key Specifications
* Automatic noise cancelling (ANC) feature for proper operation in noisy environments

* Vandal and weather resistant

* Telephone line powered

* Non-volatile E2 memory (no batteries required)

* Programmable to dial up to 5 numbers on busy / ring no answer

* Advanced call progress detection

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions