The Two-Stage Dialing Platform (PSTN originated dialing) was developed to allow callers the ability to call an Iridium subscriber via a local phone number in Arizona. This alleviates an issue with some long distance carriers not allowing calls to the 8816 country code (Iridium).

It also helps keep the cost of calling down, as the caller is charged only for the call to Arizona. The rest of the call is charged to the Iridium subscriber, typically a lower rate than a long distance call to Iridium directly.

The calling party dials an Arizona USA number (+1.480.768.2500) This connects the caller to Iridium’s Two-Stage Dialing platform located in the Tempe, Arizona.

Using automated voice prompts, the calling party enters the Iridium subscriber's phone number (8816......) The system will identify the IRIDIUM subscriber and connect the call. If there is no answer, the call will then be forwarded to the Iridium subscriber's voice mail.

The voice prompts on this platform are in the English language only.