Yes, you can increase your call plan and later decrease it to the original minimum term plan.

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 Pivotel SIM.
2. IsatPhone 2 must have firmware version 2.00.03 or higher to work with a Pivotel SIM. For instructions on how to update your IsatPhone 2 firmware, please visit http://www.inmarsat.com/support/isatphone-2-support/ or call Pivotel Customer Care on +1-865-379-8723. 
3. IsatPhone Pro must have firmware 5.17.2 or higher to work with a Pivotel SIM. For instructions on how to update your IsatPhone Pro firmware, http://www.inmarsat.com/support/isatphone-pro-support/ or call Pivotel 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.

Pivotel satellite subscribers can test the phone by calling 1-302-260-8378. Through this number, callers will hear a recorded message confirming that their call was completed. If customers find that their phones are not operational through this process, please call our support line 865.379.8723 to get further assistance.