3GPP was developed to make a global third generation mobile phone system specification with the aim to drive file sizes down and have a format that worked across a multitude of different mobile devices. 3GPP are deployed across much of the GSM market.
The 3GPP file stores the video element as MPEG-4 Part 2/H.263/MPEG-4 Part 10 (H.264) and the audio element as AMR-NB/AMR-WB/AMR-WB+/AAC-LC/HE-AAC V1. It is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used primarily on 3G mobile phones but can also be played on some 2G and 4G phones.
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