At least one company now offers international callback services from Iran to abroad. GlobalTel is a division of Interactive Media Technologies, Inc., an international telecommunications services company. GlobalTel operates under a Section 214 license issued by the US Federal Communications Commission. It provides international calling rates from Iran ranging from $2.02 per minute (to neighboring Tajikistan), to $0.88 per minute (to the US). There are no monthly fees and GlobalTel offers charges for actual minutes of calling, billed in 6-second increments after the first minute. The company claims to have had two years of rapid growth with a rojected gross revenue for fiscal year 1998 of $9,120,000.
More details, including rates, are available on the company web page at http://ld.net/globaltel.