 Examples of this were Rent-A-Wreck (1-87-RENT-A-WRECK or 1-US-RENT-A-WRECK), Speedpass (1-87-SPEEDPASS), and one of the first Vonage numbers (1-VONAGE-HELP).However, these proved to be more confusing than helpful to the callers, so the practice is not often used.When the telephone appeared in Russia at the beginning of the 20th century, telephone numbers mixed letters and numbers.