What is envoke and how does it work? Envoke is the Remote Demo Platform that connects companies, customers and employees around the world. Envoke helps train employees on new product as well as qualify sales. The platform can take files from early in the development cycle for greater collaboration.How do i contact usps if i have a hearing impairment? Call: 1-800-ASK-USPS ® (1-800-275-8777) Hours of Operation Monday – Friday 8 AM – 8:30 PM ET Saturday 8 AM – 6 PM ET. Federal Relay Services – TTY Access for Deaf & Hard of Hearing Inpiduals who are deaf, hard of hearing, deaf-blind, or have speech impairments can communicate with USPS by using the Federal Relay’s TTY services.How do i speak with a representative about another issue? If you’d like to speak with a representative about another issue with your package, please call us. 1-800-222-1811