There are 5 names in this directory beginning with the letter J.
J2ME: Java 2 Platform, Micro Edition
Java 2 Platform Micro Edition (J2ME) is a technology that allows developers to use the Java programming language to create applications for mobile wireless devices.
Jamming refers to the interference with the air radio transmission. It may be used by people who is trying to disturb the receiver from receiving the radio signal at a target frequency.
JavaPhone is a Java API specification controlling contacts, power management, call control, and phone book management. It is intended specifically for the programming requirements of mobile phones.
JTACS or J-TAGS: Japanese Total Access C
Japanese Total Access Communication System (JTAGS) is a 1G technology deployed in Japan based on the European TACS system. JTAGS is operating in the 900-MHz band.