Yes, you can increase your call plan and later decrease it to the original minimum term plan. To do so, please call Pulsar Customer Care at +1 (954) 763-8650

Yes, you can. The coverage areas of all of the satellite networks differ so it is worthwhile checking the appropriate coverage map:

Iridium Coverage Map

Inmarsat Coverage Map

Thuraya Coverage

Globalstar Coverage

If you are connected on the Inmarsat network, and using your service outside of US, the cost to call back to US will be the same as when you make a local call from within US. Incoming calls to your Inmarsat phone when traveling outside of the US are free on most handset plans.

If you are connected to the Iridium satellite network and are using your service outside of US your call rates will be different to those that apply when inside the US.

IsatPhone 2 is available in two models: original IsatPhone 2 and IsatPhone 2.1. Both models use different firmware versions, USB drivers and software tools. Please make sure to identify your correct IsatPhone 2 model before proceeding to download and install new files. IsatPhone 2.1 details are displayed on the outside of the phone’s packaging and on the CE label inside the handset. You can also identify the model by going to the ‘About’ menu setting of the handset.

1. IsatPhone 2.1 does not require firmware upgrade to work with a Pulsar SIM.
2. IsatPhone 2 must have firmware version 2.00.03 or higher to work with a Pulsar SIM. For instructions on how to update your IsatPhone 2 firmware, please visit http://www.inmarsat.com/support/isatphone-2-support/ or call Pulsar Customer Care on +1-865-379-8723. 
3. IsatPhone Pro must have firmware 5.17.2 or higher to work with a Pulsar SIM. For instructions on how to update your IsatPhone Pro firmware, http://www.inmarsat.com/support/isatphone-pro-support/ or call Pulsar Customer Care on +1-865-379-8723.
4. Isatphone firmware upgrades cannot be completed using a USB 3 port on a Windows 7 PC.
5. It is recommended to always upgrade your IsatPhone to the latest firmware version.

The new ‘Model: 2.1’ details are displayed on the outside of the phone’s packaging and on the CE label inside the handset. You can also identify the model by going to the ‘About’ menu setting of the handset.

Before a phone call can be made, the phone needs a GPS fix so it can be located by the satellite. This happens automatically, but if a new GPS fix is needed the GPS fix icon will be displayed on the screen. The phone should be kept in the open with a clear view of the sky until the icon on the screen disappears. Once this is done the phone is now ready to register with the network.

For a complete description of how and when to test your satellite phone, Download our free eBook 'Satellite Phone Test Center: All About How To Test Your Satellite Phone'"

For quick reference, you can also use the following test numbers provided by Iridium and Inmarsat.

Iridium test number +1-480-752-5105*

Inmarsat test number +870-776-999-999

If customers find that their phones are not operational through this process, please call our support line 865.379.8723 to get further assistance.