Sprint Confirms Text-Message Problems

A number of Sprint customers report difficulties receiving SMS text messages from cellular customers outside the Sprint network.
Beginning in late June, Sprint cellular customers started complaining of long delays in receiving SMS text messages — sometimes hours, sometimes days — while others said some of their texts did not arrive at all.
“We are aware of [...]

Source: http://www.wired.com/gadgetlab/2011/07/sprint-sms-text-problem/

JDS UNIPHASE JDA SOFTWARE GROUP JACK HENRY and ASSOCIATES IXYS ITRON