The cost will be less than double even though your speed is almost doubled. You must also purchase an ISDN modem. A regular modem will not work. If you have ISDN equipment, and would like to continue to use it, but receive the speed and cost benefits of DSL service, I4F has IDSL service available. This is a Digital Subscriber Line that will work like an SDSL continuous connection, at speeds of 144kbps.
All specifications are subject to change without notice.