• You should save your phone numbers in your phone in the international format, i.e. use the +36 international prefix instead of 06
• Receiving a call abroad is free of charge in the EU and in other countries in tariff zone 1 as long as the rules for fair use are complied with. In tariff zones 2, 3 and 4 the callee is also charged for roaming calls received
• Unless you provide otherwise, voice and data roaming services are automatically available to you outside Hungary as well (with the exception of tariff zone 4)
• Use of the roaming service in tariff zone 4 (Satellite and Maritime Roaming, e.g. for ocean cruises) is subject to registration, which is free of charge. More information

• When you are close to the border and would like to prevent your mobile from accidentally switching to a foreign network, change the setting on your phone from Find network automatically to Manual network selection
• Some background applications and updates on smartphones may automatically generate data traffic also when you are abroad
• Primarily for roaming tariff zones 2, 3 and 4, you have several options to avoid unexpected costs: On your phone you can disable Data roaming/Data connection to prevent your phone from accessing the Internet while abroad; you can temporarily change the default setting for LTE network to the 2G/3G network to avoid even minimum background data traffic; or you can buy a data roaming service package to safely use email and the Internet also when abroad.

We provide the Magas forgalmi limit (High traffic limit) and Netroaming-figyelő (Netroaming Monitor) services to protect our customers from overspending.
 If you already know that you will make many phone calls or use the Internet a lot when you are abroad, please contact our customer hotline or visit any Yettel store before you leave the country to discuss the limits set for your subscription.Unless you provide otherwise, the Netroaming Monitor service is automatically provided to you.
The High traffic limit service also sends you an SMS notification when you are abroad and have exhausted 80% and 100% of your quota, respectively. Once you reach the limit, your outgoing calls will be limited (within Hungary) or both your outgoing and incoming calls will be limited (when abroad) preventing further overspending.

To prevent abuse or misuse, Yettel applies the following fair use conditions to the use of voice and messaging (SMS, MMS) services and to data services within the EU and in the other countries in tariff zone 1:
The Regulated European roaming tariff applies to Subscribers habitually residing in Hungary and temporarily travelling to roaming tariff zone 1. In this respect, Yettel checks each subscription for fulfilment of the following two criteria over the preceding 4 months regarding the use of the relevant mobile phone:
1) Residency criterion: the subscriber is considered to be habitually residing in Hungary if the call number was mostly (in more than 50%) was used in Hungary in the 4 months preceding the date of the check.
2) Traffic criterion: the aggregate volume of voice, SMS, MMS and mobile Internet traffic in Hungary and in roaming zones 2 and 3 must exceed the volume of voice, SMS, MMS and mobile Internet traffic in roaming zone 1.
If either of these criteria are not met, a surcharge may be charged for the relevant type of traffic of the subscription (voice calls made, calls received, SMS, MMS, mobile Internet) while roaming within the EU and in other countries in roaming tariff zone 1. More information
 

What is an alternative roaming operator?
All of our customers may buy roaming services from another operator by keeping their Hungarian subscription and SIM card and simply using a foreign service (within the EU) from another operator
For the time being, the option to choose an alternative roaming operator only exists in theory as Yettel does not yet have a contract with an alternative roaming operator

What do I need to do to use an alternative roaming service (in the future)?
The selected alternative roaming operator must be contacted directly, and our customer can indicate their wish to do that at any time. It might be necessary to sign a contract before leaving the country. Neither operator may charge a fee for the administrative services related to switching to another roaming operator

How long does the switch to another operator take?
Once the contract is signed, the switch is implemented within one business day

Can I keep my alternative roaming operator if I switch to a different domestic operator?
If you switch to another domestic operator (with or without number porting), the new domestic operator has no obligation to support the roaming services supported by the alternative roaming operator.

For roaming within the EU and in countries of roaming tariff zone 1, a surcharge is charged if:

the terms for fair use are not met, or   the volume of data traffic exceeds the data quota included in the relevant tariff package or the supplementary data services available for use within the EU.
Surcharges as of 1 July 2022 (gross):

voice calls made: HUF 14.73 per minute
voice calls received: HUF 4.97 per minute
SMS sending HUF 4.61 per SMS 
MMS sending HUF 9.21 per MMS
data traffic: HUF 0.93/MB