Making Calls Over IsatHub iSavi

How To Make and Receive Calls Over the IsatHub Network

All calls made over the IsatHub Voice App on a smartphone connected to the IsatHub network are considered “International” calls. If you’ve never made one before, it can be a bit confusing. This tutorial will help you make your first call, as well as how to call your smartphone when it’s connected to the IsatHub network.

Every IsatHub account is assigned a 9 digit international telephone number along with a 3 digit Country Code. The Country code for all IsatHub phones is 870. IsatHub phone numbers can be called from any phone on the planet if the calling party is allowed to make international calls (if not, we recommend using a local number service like this). If you do not know your IsatHub phone number, please contact your IsatHub service provider or Ground Control.

Making a call FROM an IsatHub phone

Note that all calls will be using the IsatHub Voice App that is downloaded to your smart device.

To make a call from a IsatHub phone into the United States, dial the United States country code (001), and then the area code, and then the phone number.

Example – (Calling a U.S. Phone Number from a IsatHub Phone): 001 805 783 4600
In this example 001 is the U.S. country code, and 805 is an area code in the U.S.

For calling into another country:
Dial the country code then the full phone or fax number. To locate the country code that you are calling into, please visit

Making a call TO an IsatHub phone from anywhere

To call an IsatHub phone from the United States, dial 011 and then Inmarsat’s country code of 870, then the 9 digit IsatHub phone number. Note that 870 is the Country Code for all Inmarsat phones. Please note that many phone providers (cellular and landline) will by default BLOCK all calls made to any international phone number. You will need to contact your phone provider to unblock international calls, or use this local number service.

Example 1 – (Calling an IsatHub Phone from the U.S): 011 870 772520732

From outside United States please use this tool to help you find the correct number sequence.

Example 2 – (Calling an IsatHub Phone From Afghanistan): 00 870 772520732

Each country is different, however many countries use 00 plus the country code. We also recommend using this tool to help you find the correct number sequence. If this doesn’t work, you may always ask for assistance from an operator to help connect. You only need to know the 870 country code and the 9 digit IsatHub phone number for the operator to connect you.

Note – While the IsatHub account will not be charged for any incoming calls placed to it, the calling party WILL paying International calling rates. Charges vary widely between phone providers from $1 to $10 USD per minute, and some phone providers simply block international calling. The calling party can ask their phone provider for their international plan rate to “Inmarsat” which has its own Country Code of 870. Phone providers often have small international plans that can be added to avoid paying any exorbitant per-minute fees. Also consider adding a local number for the IsatHub phone.

IsatHub to IsatHub – Making a call FROM a IsatHub phone TO a IsatHub phone

To place calls between IsatHub phones, dial 00-870-?????????

Example – Dial 00-870-772520732

Accessing IsatHub Voice Mail

IsatHub voice mail be accessed by calling 570 (short code) or 00-870-772001899 from a IsatHub phone or 011-870-772001899 from any other phone. You will be prompted by the auto-attendant for your IsatHub phone number, as well as the VoiceMail PIN number supplied by Ground Control.

An Excellent Tool For ALL IsatHub Calling

This handy website helps find the exact number sequence you need in order to place a call to or from a IsatHub phone from anywhere in the world. Please use “INMARSAT” as the country you are calling to or from.
Example 3… If you are calling a IsatHub Inmarsat phone:

  1. Under “Where are you calling from”, select the country you are calling from.
  2. Under where are you calling to, select “Inmarsat“. (It isn’t a country, but Inmarsat is listed).
  3. Click on Submit.
  4. On the screen that appears, you should have the prefix numbers before the 870 Inmarsat international number and then the 9 digit IsatHub number.

Example 4… If you are calling from a IsatHub Inmarsat phone:

  1. Under “Where are you calling from”, select “Inmarsat”.
  2. Under “Where are you calling to”, select the country you are calling.
  3. Click on Submit.
  4. On the screen that appears, choose the pull down window labeled “City Info…” and choose SNAC (Single Network Access Code). That number and the 9 digit IsatHub number should connect you.


Add a Local Number to a IsatHub Phone

Give your phone a local phone number so anyone can call you without paying for an international call.