What was the 1st United States Volunteer Cavalry call?

SGT Scott Bell The 1st United States Volunteer Cavalry otherwise known as the Rough Riders who fought in the Spanish American War. The unit was nominally commanded by Col. Leonard Wood, an army surgeon who had won the Medal of Honor for an Indian fight ten years before, but in fact was led by Lt. Col. Theodore Roosevelt.
"The Rough Riders were the first United States troops to land in Cuba. They raised their regimental flag over a blockhouse swiftly taken from the Spaniards. The regiment's baptism of fire came at Las Guasimas on June 24, when Roosevelt's men, well-armed with Krag-Jörgensen carbines, mauled a detachment of the Spanish army impeding the invasion force's penetration to the interior of the island. The Spaniards then fell back to and fortified San Juan Hill, which Shafter's corps assaulted on July 1. In this battle the First United States Volunteer Cavalry, with elements of the Ninth and Tenth United States Cavalryqqv regiments, made the famed charge on San Juan (actually Kettle) Hill, seizing the Spanish fortifications and pushing the defenders back into Santiago de Cuba. The attack cost 1,000 American casualties and induced Roosevelt to write to his friend Senator Henry Cabot Lodge, "We have won so far at a heavy cost; but the Spaniards fight very hard and charging these entrenchments against modern rifles is terrible."
As the troops were preparing to make the final assault they were expecting the bugle call "forward" to make another rush, instead the longer bugle call for "Charge" was played by a bugler.
LTC Stephen C., CPT L S
https://tshaonline.org/handbook/online/articles/qlf01
https://books.google.com/books?id=fZQ5AQAAMAAJ&pg=PA178&lpg=PA178&dq=Bugle+call+at+San+Juan+hill?&source=bl&ots=eIKCwP4xgk&sig=5NMjSIjuH7OHpJH9Neh1HSmq-T8&hl=en&sa=X&ved=0CEIQ6AEwCGoVChMI-eOBmp3qxwIVRmseCh3jzQlP#v=onepage&q=Bugle%20call%20at%20San%20Juan%20hill%3F&f=false

"Rough Riders" also known as,
"Teddy's Terrors" or
"Rocky Mountain Rustlers."

Waking up to a cup of coffee and a Cavalry question......Priceless. Thanks for the motivationSGT Scott Bell. I owe you one.