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The following table sets forth our interconnection fee revenues and costs for the periods indicated. These revenues and costs are included, depending on the nature of the call made, in domestic fixed communications or mobile communications revenues and expenses, respectively. 

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(1) Includes SMS air time charges. 

Tariffs for telephone calls between our fixed line customers and mobile customers of other mobile operators are set by the mobile operators before 2010. The mobile operators pay us interconnection fees based on minutes of usage, regardless of who initiated the call. However, the National Communications Commission made amendments on August 4, 2010, stipulating the fixed line party who initiated the call to set the fees from January 1, 2011 onwards. Since we are the market leader of the local call services, in addition to the interconnection fees, we are required to pay transition fees to the mobile operators for a period of six years. The transition fees will decrease gradually over the period and we will stop paying for them in 2017. 

The National Communications Commission approved new fixed line interconnection rates that became effective January 1, 2009. The interconnection rate for calls initiated by mobile customers to fixed line customers is NT$0.5219 per minute during peak times and NT$0.2718 per minute during off-peak times. The interconnection rate for calls initiated by fixed line customers to mobile customers is NT$0.8729 per minute during peak times and NT$0.6228 per minute during off-peak times. The interconnection rate between fixed line customers and other fixed line customers is NT$0.32 per minute during peak times and NT$0.09 per minute during off-peak times. The interconnection rate for fixed line customers to domestic or international long distance is NT$0.32 per minute. 

In accordance with governmental regulations, the contracts governing our interconnection arrangements must specifically address a number of prescribed issues. For example, our interconnection charge should reflect our costs with respect to the network elements used. In addition, cost increases are subject to approval by the regulatory authorities. We expect that our interconnection contracts will generally be reviewed annually, although we may also enter into long-term contracts. 

## Cross-segment Businesses 

We provide some services that cross our various business segments. These include our ICT services and telephone directory services. 

## Information and Communications Technology 

Our information and communications technology, or ICT, services includes integrated services such as our Intelligent Energy Network, or iEN, and our Intelligent Transportation System, or ITS, services. Our iEN service helps companies and corporations implement energy saving measures through computer analysis of data. Our ITS service provides navigation, real-time traffic information and infotainment through mobile devices for cars and drivers. In addition to developing ICT businesses, such as iEN, ITS, IS, Call Center, IDC, we also pursue and bid for government projects aiming to boost economic development, for example, we had won the bid for “The New Generation Reform Project of Taxation Information Systems” launched by the Financial Data Center, Ministry of Finance in February 2010. 

