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The Third Generation Partnership Project (3GPP) is a collaborative Project Agreement between telecommunications industry partners (Organizational Partners) for formalizing global mobile 3G wireless systems based on radio access technologies and Global System for Mobile Communications (GSM) specifications.
The 3GPP file format extension (.3gp) is defined for 3G multimedia service and also used in Second Generation (2G) and Fourth Generation (4G) mobile wireless technologies.
3GPP systems are deployed in GSM markets. 3GPP incorporates releases as individually documented specifications with the following features:
3GPP specifications also include GSM technical maintenance and development, such as evolved radio access technologies.
3GPP work is managed via meetings and direct mail. Voting opportunities and decisions are finalized by consensus. The following are 3GPP membership levels:
3GPP technical specification groups are structured as follows:
Terminal working groups perform technical works for ultimate technical specification approval.