sony ericsson 3G phone Fails to ring true The Sony Ericsson Z800 has won plaudits for its slim, silver design but a few users have told Earful not to judge the handset by its slick packaging. The 3G clamshell phone apparently has a glitch: the network connection is sometimes lost when the handset is flipped open. Displayed on the screen is the message 'emergency calls only', which can last up to three minutes. Users said the problem occurred regardless of which network operator they were using. CSL, Hutchison and SmarTone Telecommunications carry the Z800. The glitch could mar what has been a generally positive reputation. The GSM Association named the Z800 Best 3G Handset in February during the 3GSM World Congress. Sony Ericsson general manager Tony Tai said the Z800 was popular, with more than 30,000 units sold in Hong Kong. He said the company had not received any complaints. SmarTone also said no complaints had been received. CSL and Hutchison could not be reached for comment. The hitch does not appear specifically related to 3G networks. One user told Earful she experienced the problem when using the phone on a 2G network. docomo sets 4g speed benchmark Meanwhile, Japanese mobile giant NTT DoCoMo said it had successfully achieved a one gigabit per second downlink transmission speed at a moving 20km/h. The speed was achieved through '4G technology'. While no company has come up with a standard for 4G, DoCoMo and Hewlett-Packard announced in 2000 that they were jointly developing 4G technology. They named the technology platform Moto-media. Since then the two have provided little information. DoCoMo has set its sights on building a 4G network in 2010. With 4G promising speed between 100 megabits per second to 1Gbps, this would be seven times as fast as the 3.5G high-speed downlink packet access, which boosts speed to 14Mbps and should be launched by local operators next year.