Logo of <a href="https://en.wikipedia.org/wiki/Comdial" class="extiw" title="en:Comdial">Comdial Corporation</a>, 2004
Comdial Corporation
Extracted from <a rel="nofollow" class="external free" href="https://www.telcotel.com/comdial/MP5000%20Brochure.pdf">https://www.telcotel.com/comdial/MP5000%20Brochure.pdf</a>