O2 | FAQ

I have entered an incorrect PIN code three times and now my phone requires a PUK code. Where do I find it?

Is it possible to make cheaper international calls?

How can I activate internet on my mobile?

I cannot send MMS messages, what should I do?

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O2 Business tariffs Expand

Can I get an O2 Business tariff without signing a General Agreement?

What is a Minimum Commitment and what is included in it?

Who can carry out changes of tariffs if I have a signed General Agreement?

How do I get special benefits if I want to buy a new tariff, but I've already signed a General Agreement?

With which tariffs do I get benefits when I sign a General Agreement?

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Prepaid card Expand

Generally about the prepaid card Expand

How can I activate internet on my mobile?

How can I cancel voicemail?

Can I change my tariff?

How do I choose my reward with the NA!HLAS and NA!PIŠTE tariffs?

I want to transfer my number to a different operator. What should I do?

Can I use a prepaid SIM in any phone?

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Credit and recharging Expand

What is the most cost-effective way of recharging my credit?

How can I find out the credit status on my SIM?

I have a recharging coupon which is illegible. What should I do?

I have recharged someone else's phone number by mistake. What can I do?

Is the validity of a prepaid SIM card limited in any way?

What happens to the credit on my prepaid card if I transfer to a postpaid tariff?

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SMS, MMS Expand

What if I have a negative credit for the reception of MMS on my SIM card?

What do I need to do for MMS messages to work on my phone?

How are SMS messages billed?

I cannot send SMS messages and call numbers starting with 900. Why?

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Roaming Expand

What fees do I pay if I call from abroad? Does it matter which country I'm in?

I am about to travel abroad. How do I set up Roaming?

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Mobile tariff Expand

Generally about a mobile tariff Expand

How do I extend my contract?

Can I find out how much I've spent before the billing period ends?

How and when can I change my tariff?

What is an identification number and why do I need it?

When do you refund my O2 Zero tariff guarantee?

Who should I contact if I wish to get postpaid services?

If I transfer to postpaid services, can I buy a mobile phone?

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Mobile+ (phones for subsidized prices) Expand

What happens if I have a subsidized phone and I transfer to a different tariff during my contract?

Is it possible to have a subsidized mobile phone and an O2 NEON tariff at the same time?

Can I cancel a signed contract prematurely?

Who is the offer of subsidized phones designed for?

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SMS, MMS Expand

What do I need to do for MMS messages to work on my phone?

Can I get cheaper SMS messages?

How do I set up a message delivery confirmation?

I cannot send SMS messages and call numbers starting with 900. Why?

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Roaming Expand

What roaming tariffs do you offer?

Can I change the O2 Eurotarif tariff?

How can I use my mobile phone abroad?

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Forwarding and blocking of calls Expand

How do I cancel my voicemail?

How can I have calls forwarded to a different number and how much does it cost?

How can I cancel transferring of calls to my voicemail?

How do I block calls on my phone number and how much does it cost?

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Most frequently asked questions by a new customer of mobile tariffs Expand

When do I get my first invoice?

What is an identification number and why do I need it?

When will I become a postpaid customer?

How does voicemail work?

How can I get a new subsidized phone?

When can I start using Roaming?

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Online dobíjení (CZ only) Expand

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Simzdarma (CZ only) Expand

How many prepaid O2 SIM cards can I order?

When will I receive my O2 SIM card?

How do I activate my prepaid O2 SIM card?

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Fixed-line calling Expand

Generally about fixed-line calling Expand

I’m moving to a new address. What happens to my calling from home service?

Can I use my free minutes even into networks of other providers?

An item labelled “others” appeared on my bill. What does it mean?

Is it possible to temporarily suspend my O2 fixed line?

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Voicemail Expand

Is the service available for every line?

How long from ordering will the service be activated?

With which voice tariff can I get Voicemail?

Will Voicemail work even with my phone?

How much does Voicemail cost?

How can I reach my Voicemail?

How can I listen to my messages?

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SMS messages in the fixed line Expand

What do I need to use SMS services in a fixed network?

How are fees for sent SMS messages billed?

When will the SMS service in a fixed network be set up for me and how do I find it out?

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Internet Expand

Internet on Your Mobile Expand

How do I activate Internet on Your Mobile?

How do I deactivate Internet on Your Mobile?

What is the connection speed?

Do I need to change my phone settings?

What is the difference between the O2 Internet on Your Mobile Start tariff and the O2 Internet on Your Mobile tariff?

Can I use Internet on Your Mobile without a tariff?

Can I use Internet on Your Mobile abroad?

How do I block internet connection abroad?

Can I use the Internet on Your Mobile tariffs to connect on my notebook?

Can I use Internet on Your Mobile all over the Czech Republic, or only in places with 3G network coverage?

What is FUP?

Where can I find my FUP status?

What happens when my FUP has been used up?

When is FUP drawing cleared?

Can I use Internet on Your Mobile for something other than browsing websites?

Do you support tethering for iPhone?

Can people call me when I am using Internet on Your Mobile?

Can I limit or block the internet connection on my phone?

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Mobile Internet Expand

General info Expand

How do I get mobile internet?

What devices do I need?

How long will it take from ordering a monthly mobile internet tariff to getting connected?

Can I get connected to the internet even without daily bundles or a monthly postpaid fee?

Can you protect my computer against viruses?

What is FUP?

Where do I find out how much of my FUP limit I have already used up and when my FUP usage gets reset?

What happens when FUP has been used up?

When is FUP drawing reset?

Do I pay for connection even if I only visit the web self-service at www.o2pripojse.cz?

Web self-service is not automatically opening. What shall I do?

O2 Connection Guide does not work. What shall I do?

Can I use mobile internet abroad?

Where can I find the phone number of the SIM card that I use to get connected?

Can the SIM card that I got with my mobile internet be used like a regular SIM, to make calls?

If I get connected using my notebook and a phone, will my number be available for calls?

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Modems Expand

What is the O2 Connection Guide for?

Do you have a modem compatible with MAC OS?

Can I get connected to mobile internet without a USB modem?

What are the minimum system requirements to install a USB modem?

Can I use the USB modem on a different notebook or a PC?

Can I use the modem in different USB ports of my computer?

I have connected a new USB modem but nothing happens, installation has not started automatically. Why?

Where can I get current controls for my modem?

Does the Huawei E1750 modem only work for internet connection?

The modem often switches from 3G to EDGE. Can I set up a 3G preference?

When my modem is connected it does not register a signal.

I have the Huawei E1750 modem. What do the different controls of my modem mean?

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Technology and connection speed Expand

What is the connection speed?

How do I find out with which technology I am currently connected to the internet?

What is the current coverage of individual technologies?

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Prepaid package Expand

I have bought an O2 Mobile Internet set. How can I activate the prepaid period of internet connection?

I have a set with a month of internet included in the price. How do I find out how much longer I can be connected?

What happens when I'ver used my prepaid internet time?

How do I find out the status of my credit?

Why isn't my credit being displayed?

How long does it take for a daily bundle to get activated after I've ordered?

I have activated a daily bundle. 24 hours have not run out yet but I have already used all my data. What can I do?

Can I get connected multiple times with one daily bundle?

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BlackBerry fromO2 Expand

Why to get a phone and the BlackBerry service?

Can I use my BlackBerry abroad?

Is communication on your BlackBerry secure?

Do the same fees apply when browsing any website on my BlackBerry?

Can the BlackBerry service be used with other mobiles?

Didn't find what you were looking for? Ask our O2 gurus on Facebook, Twitter or the O2 Forum.

Internet for the office Expand

General info Expand

What kind of home internet can I get from O2?

How fast is O2 internet?

How can I check my connection speed?

Do I need a fixed line from you to get home internet?

Can I connect to the internet on more than one computer at a time?

What do I need if I want to have wireless internet at home?

Can I use home internet and watch O2 TV on one line at the same time?

Is there a limit to how long can I be online, or how much data I can download?

I’m moving to a new address. What happens to my Home Internet?

I heard you sped up your internet in May 2011. What does that mean for me?

How can I speed up my internet?

Can new customers get faster internet too?

Can you help protect my computer against viruses?

I get my home internet from O2. Can I get any special offers on other services?

How does the O2 SIM to SIM service work? Is it really free with the internet?

Is it possible to temporarily suspend Home Internet?

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Ordering and activating Expand

What is a connection test?

How long does setting up a new connection take?

How can I get O2 internet?

Can a technician install mobile internet for me?

Can O2 install a modem that I bought somewhere else?

When will you start billing me?

Can I install the internet myself?

Didn't find what you were looking for? Ask our O2 gurus on Facebook, Twitter or the O2 Forum.

Technology and devices Expand

Where can I find detailed information about your modems?

Where can I get instructions for setting up my modem?

How close to the exchange do I have to be to connect to the internet?

What does a WiFi modem do?

My internet is slower than the speed that I ordered. Why?

I'm having technical problems. What shall I do?

The modem I bought is faulty but I do not have a filled-in guarantee certificate. What can I do?

If my connection dies how long will it take you to fix it?

Can I choose my modem?

Can I use a modem I haven't bought from you?

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IP address Expand

How can I find out my IP address?

Can I get a fixed IP address with my internet connection?

What type of IP address do I have?

I can't send emails. What shall I do?

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O2 Hot Spot Expand

What do I need to do to use O2 Hot Spot WiFi?

Where can I buy recharging coupons?

Do I have to be a customer to use O2 WiFi?

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O2 Fiber Expand

Can I use O2 Fiber services?

Who can tell me more about O2 Fiber, its prices and service availability?

What is O2 Fiber?

Why did you increase the price of one tariff by CZK 1 and decrease the price of another by CZK 350 as of January 1, 2011?

As of January 1 2011 you changed the speed of O2 Fiber tariffs from symmetric to asymmetric. What does this mean?

O2 Fiber services in my area are cheaper than the price you give here.

I'm having a technical problem with the O2 Fiber service. Who can I contact?

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Faster internet Expand

What's the process when you speed up internet connection?

Why do I need a new modem to speed up my connection?

After I've connected my new modem, how long will it be before my connection becomes faster?

Will I lose my internet connection for a while when I get faster internet?

Can I use my own VDSL modem?

Does my IP address change when my internet speeds up?

Didn't find what you were looking for? Ask our O2 gurus on Facebook, Twitter or the O2 Forum.

Internet Business (Professional SDSL connection) Expand

Is the Internet Business service for me?

How do I find out what the connection availability for O2 Internet Business is?

Is the speed you quote guaranteed?

Can I install Internet Business myself?

Does a data limit apply with this service?

Can VoIP be used on the O2 Internet Business connection?

What connection speed can I get?

Is an end-user device included when I get O2 Internet Business?

What types of end-user devices are provided?

How many fixed IP addresses do I get with this service?

Are Service Level Agreements (SLAs) provided?

Can I order a firewall with the O2 Internet Business service?

What is the aggregation of the O2 Internet Business service?

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Billing and payment Expand

What are Payment Transactions and why are they listed separately on the invoice?

What should I prepare if I need to call you with regards to my billing?

What should I do if I do not receive an invoice?

Why have you not included a detailed list of my calls with my invoice?

Is it possible to temporarily suspend fixed services like O2 TV, Home Internet, or a fixed line?

How much is a detailed list of calls?

Can I find out how much I have spent on calls during a billing period?

What is the bank information for O2?

How can invoices be settled?

Can I settle my invoice directly in a shop?

What is the maturity of invoices?

I have paid a deposit and it is listed on my invoice, when and how will I get it back?

What does “Doúčtování do výše minimálního plnění" (subsequent billing to the minimum commitment amount) on my invoice mean?

Should I settle my invoice if I am submitting a complaint?

If I submit a complaint and it is recognize, will you correct my invoice and issue it with a new sum retrospectively?

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O2 e-bill Expand

Activation of the O2 e-bill service Expand

Where can I order O2 e-bill?

Is it possible to order the service O2 e-bill in O2 Shops?

Do I have to have a separate username and password for each of my telephone numbers?

Do I have to be connected to the internet from my home connection when I order or use the O2 e-bill service?

What is the difference between the O2 e-bill and e-bill business services?

What is the price of the service O2 e-bill?

Does the establishment of the service O2 e-bill influence the provider of internet connection which I utilise for internet access?

Didn't find what you were looking for? Ask our O2 gurus on Facebook, Twitter or the O2 Forum.

O2 e-bill settings Expand

Can anyone else view my electronic billing?

What should I do in the case of difficulties with the display of electronic billing?

Can I cancel the O2 e-bill service?

If I cancel the O2 e-bill service can I re-order it?

The payer of my telephone station has changed, and I can no longer display my e-bill. How should I proceed?

I have established another telephone station. Will I see a detailed statement in my e-bill, or do I have to re-order the service?

Is it possible to order the O2 e-bill service retrospectively? For example, can I view my bills from last year?

Didn't find what you were looking for? Ask our O2 gurus on Facebook, Twitter or the O2 Forum.

Electronic billing and detailed statement of calls Expand

When are the changes in the O2 e-bill service variant reflected in my billing?

I pay charges for the services of Telefónica Czech Republic, a.s. by postal order. Can I use the O2 e-bill service variant without the sending of a hard copy of billing?

I selected the possibility “Do Not Send a Hard Copy of Billing” in the O2 e-bill application, but I still got my paper bill. What went wrong? Do I need to apply again?

If I use an O2 e-bill, will I no longer get a printed bill?

When at the earliest can I find out in O2 how much I had spent on calls in the preceding billing period?

How long will each bill be saved?

How can I find a detailed call statement for a telephone number?

How can I change my settings for hard copy billing?

Where can I download PDF bills?

How do I set up getting my bill by email?

How do I get notification that my new bill has arrived?

How do I get to the detail of a specific bill?

Where do I find Billing Settings?

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Network documentation Expand

Je možné elektronické doručení Vyjádření? (CZ only)

Pro vyzvednutí Vyjádření z Vašeho serveru musím použít Autorizační kód, který mám obdržet prostřednictvím SMS na mobilní telefon. Proč jsem SMS s autorizačním kódem neobdržel? (CZ only)

Požádali jsme o zaslání trasy sítě v .dgn, soubor dgn jsme obdrželi, ale proč nelze otevřít? (CZ only)

Existuje legenda k obsahu *dgn souboru?

Jakou podobu má standardní Vyjádření o existenci SEK vydané společností Telefónica (CZ only)

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Other Expand

Pro zdravotně postižené (CZ only) Expand

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Solus (CZ only) Expand

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