After starting taking preliminary orders for iPhone 4, Apple and AT&T encountered some technical problems on their websites because of the boom from the side of buyers, reported Reuters. Apple even had to disconnect the hotline because of the excessive number of phone calls.

Many buyers who were trying to place an order for a new iPhone which is going to be on sale from June 24 got the error about the impossibility to execute the operation at the given moment with the request to try later. By the evening the AT&T site gave the information that the whole volume of iPhone 4 reserved for preliminary orders for June 24 had been realized. Now the operator is accepting orders for the next days after the official launch of sales.

The desire to become one of the first owners of iPhone 4 was so strong that some users who hadn’t managed to place a preliminary order online rushed to the AT&T store and subscribed manually. Among the customers, there were professionals who specialize in iPhone programming, because they will have to work actively with the new device. The company announced that it is the result of ‘incredible interest’ to the new smartphone and added that for its whole history they hadn’t seen such a demand.

Last year the sales of iPhone 3GS reached 1 mln items in the first 3 days. iPhone 4 is expected to reach this mark even earlier since the number of preliminary orders made at AT&T is much higher in comparison with the smartphones of the previous generations. The price of the smartphone in the USA is $199 for the version with 16 Gb memory and $299 with the version with 32 Gb