The Church Call is a significant signal indicating the commencement of a Scouts Own Service or announcing the formation of a funeral escort. This call holds historical significance, dating back to at least the U.S. Army Infantry manual of 1874, attributed to General Emory Upton. It's also interesting to note that its origins trace back to the Sonneries de Chasseur of 1845, a French source.
This call likely serves as a solemn reminder of duty, reverence, and respect for religious ceremonies and funeral rites within military contexts. Its adoption and preservation in military manuals across different cultures underscore its enduring significance in military customs and traditions.