User manual
Chapter 3: Operation
98-143082-A Alerts 26
To make a call to the EXPLORER 510
To make a call to a phone connected to the EXPLORER 510, dial + <Mobile number>
• + is the prefix used in front of the country code for international calls. This is 00 when 
calling from countries in Europe and from many other countries.
• Mobile number. The first part of the mobile number is always 870, which is the “country 
code” for the BGAN system. For information on the mobile numbers, refer to your airtime 
subscription.
Local numbers and special functions
Overview
There are a number of local numbers and dialing functions available in the EXPLORER 510.
The following list shows the allocated local numbers and special-purpose numbers for the 
EXPLORER 510.
Apart from the numbers above, the EXPLORER 510 uses the following dialing prefixes:
• 1* before the phone number will force the connection to use Standard voice.
• 2* before the phone number will force the connection to use 3.1 kHz audio.
• #31# before the phone number will hide the callers phone number to the recipient.
• *31# before the phone number will show the callers phone number to the recipient where 
it would otherwise be hidden, e.g. because the number is an ex-directory number.
Alerts
When an alert is registered, the Terminal Access part of the EXPLORER Connect app and the 
web interface show a warning icon 
 in the icon bar as long as the alert is active. The Alerts 
list only shows alerts that are currently active.
To view the Alerts list, click 
 from the icon bar at the top of the page, or select Alerts from 
the Support page.
For more information on the event messages, refer to List of messages on page 76.
Note
There are two mobile numbers, one for 3.1 kHz audio and one for Standard 
voice.
Number Function
0 followed by one of the numbers 
501-516 and off-hook key
Local call to one smartphone or IP handset.
0900 followed by off-hook key Local call broadcast to all connected phones.










