iDoubs is the world’s first open source SIP/IMS Videophone for iOS.
3GPP IMS (IP Multimedia Subsystem) is the next generation network for delivering IP multimedia services. IMS is standardized by the 3rd Generation Partnership Project (3GPP).
IMS services could be used over any type of network, such as 3GPP LTE, GPRS, Wireless LAN, CDMA2000 or fixed line.
The current version (alpha) of idoubs already supports H264, Theora, H263 and H263-1998 codecs.