Foreign countries are now included for O2 business customers:

New EU+ Travel option for Europe and North America

-O2 Business eliminates price per minute for roaming
-Full cost control even when you are abroad
-Best price-performance-ratio on the market
MUNICH. Telefónica in Germany extends its tariffs for business customers with an effective cost limit for abroad. Starting at April 23, travelers can make unlimited mobile calls, surf the Internet and write 1,000 texts a month without incurring high costs for roaming. With the new option EU+ Travel each phone call made abroad or to Germany costs only a low one-time fee. Minute units will be eliminated and the best thing is: The new travel option is free for customers using the tariffs O2 Blue All-In Professional L and XL as well as O2 on Business L, so there won't be additional costs for business tariffs.
With the new EU+ Travel option business travelers always have full cost control, as the international flat-rates apply in the 27 EU countries as well as in Switzerland, Norway and North America. EU+ Travel will first be available for customers who book either O2 Blue All-in Professional L and XL, or O2 on Business L. After May 15, customers using O2 on Business XL can book the EU+ Travel option as well.
"From now on, self-employed workers and companies do not have to worry about their mobile costs anymore while travelling", says Michiel van Eldik, Managing Director at Telefónica in Germany. "In our new option EU+ Travel foreign countries are included." Accordingly, each phone call made abroad costs only a connection fee of 41 cents net with the O2 Blue All-in Professional tariff. It does not matter at all, how long the phone call takes. Customers using O2 on Business L pay only 40 cents net for each call and customers with O2 on Business XL even pay only 20 cents net. Prices per minute or any other costs will not accrue. With the included 1,000-texts-package and the data flat-rate with up to 250 megabyte at full speed - depending on the booked tarif - the EU+ Travel option ensures full cost control while being abroad.
Furthermore, the business rates O2 Blue All-in Professional L and XL as well as O2 on Business L include several flat-rates or big add-on packages for the use in Germany: for calls, texts into all networks and data. Depending on the booked tariff, you can either use two, five or even 10 gigabyte at full speed while surfing the Internet on your travels. Up to 120 minutes of free calls from Germany to abroad are included as well. For more information please visit our O2 website: For big companies: For self-employed workers and small companies:
Telefónica Deutschland Holding AG, listed at the Frankfurt Stock Exchange in the Prime Standard, and its wholly-owned, operationally active subsidiary Telefónica Germany GmbH & Co. OHG belong to Telefónica Europe and are part of the Spanish telecommunication group Telefónica S.A. The company offers its German private and business customers post-paid and prepaid mobile telecom products as well as innovative mobile data services based on the GPRS, UMTS and LTE technologies with its product brand O2. In addition, the integrated communications provider also offers DSL fixed network telephony and high-speed Internet. Telefónica Europe has more than 103 million mobile and fixed network customers in Spain, Great Britain, Ireland, the Czech Republic, Slovakia and Germany.