This paper proposes a joint source channel coding scheme for robust real time transmission of H.264/AVC ­coded ­video over noisy channels and under bandwidth limitations. A new method of rate adaptation to the ­allowed ­maximum channel transmission rate which does not assume source rate control in the source coder has been ­proposed. This keeps system complexity reasonable and improves the perceived decoded video quality. These are desirable features for two-way video-conferencing using mobile hand-held devices. Data partitioning is used to code the source data. Then, unequal error protection is applied at the network abstraction layer. For robustness, we use joint ­optimization of forward error correction at the transmitter and error concealment at the source decoder. A low complexity and ­efficient algorithm of channel code rate allocation to the network abstraction layer units is then developed. ­Simulation results show that the perceived decoded video quality is improved for small levels of signal-to-noise ratio.