Optional Companion Voice Service is available for Iridium PTT if the ability to make a private phone call (telephony) or send and receive SMS messages is required. Companion Voice Services are optional. Though the popular Iridium Extreme PTT handset supports telephony, it is important to understand that some Iridium PTT equipment like the ICOM IC-SAT100 does not have a telephony mode. Please call us for more information.
Talk Group Coverage: The group of mobile users can access Iridium Push-to-Talk service within their talk group coverage area. A Small Talk Group with a total coverage area of 100,000 square kilometers (roughly the size of the state of Indiana) is included free, contingent on maintaining at least 5 active devices. Up to 14 additional Small Talk Groups can be enabled but monthly fees apply. Also, larger Talk Groups are available upon approval by Iridium of the application. The boundaries of a Talk Group can be configured on-the-fly through an online web portal.