Roamix Omni PREF and EXT Networks Explained
On this page
Last updated
In each country, Roamix Omni can connect to more than one network:
- PREF (preferred): the main partner network. Normally the cheaper option, and the one your phone uses first.
- EXT (extended): other networks that fill coverage gaps, each with its own rate.
You're billed at the rate of the network you're actually on. Every rate, and each network's top speed, is on the Omni rates table. Your phone only uses EXT when it's the best or only signal where you are.
Lock Your Phone to PREF
Find your country on the rates table and note the PREF network's name, then:
iPhone: Settings, then Mobile Data (or Cellular), tap your Omni line, tap Network Selection, turn off Automatic and pick the PREF network.
Android: Settings, then Network and internet (Samsung: Connections), SIMs (Samsung: Mobile networks), your Omni SIM, turn off Automatically select network (Samsung: Network operators, then Select manually) and pick the PREF network.
Switch back to automatic when you leave the country. A network picked by hand only works in its own country.
Your Omni usage shows each day by network, so you can check whether any data was on EXT.
For examples of PREF and EXT rates and when EXT is worth it, read PREF vs EXT networks explained.
Frequently Asked Questions
What's the difference between PREF and EXT?
PREF (preferred) is Omni's main partner network in a country and normally the cheaper one. EXT (extended) networks add coverage and each has its own rate, which can be close to PREF or much higher.
Which network will my phone use?
PREF first. Your phone only uses an EXT network when it's the best or only signal where you are. You're billed at the rate of the network you're actually on.
How do I make sure I only use PREF?
Turn off automatic network selection on the Omni line and pick the PREF network by hand. Switch back to automatic when you leave the country.
Was this article helpful?