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Multimedia and Ubiquitous Engineering, International Conference on (2007)
Seoul, Korea
Apr. 26, 2007 to Apr. 28, 2007
ISBN: 0-7695-2777-9
pp: 1147-1152
Yong-Seok Park , National Security Research Institute, Korea
Jaehwan Ahn , National Security Research Institute, Korea
Choon-Soo Kim , National Security Research Institute, Korea
Jae-Cheol Ryou , Chungnam National University, Korea
<p>To realize the voice privacy between CDMA mobile phone and PSTN terminal, the voice frames shall be transmitted transparently between the heterogeneous networks. For satisfying this requirement, we propose the method which transmits voice frames by the CDMA circuit data channel in real time.</p> <p>In this paper we analyze the causes of voice delay which occurs during voice transmission by circuit data channel, propose methods which overcome the voice transmission delay and prove proposed methods by the experiment.</p>

J. Ahn, J. Ryou, C. Kim and Y. Park, "A Real Time Voice Transmission Method for Voice Privacy between CDMA Mobile Network and PSTN," 2007 International Conference on Multimedia and Ubiquitous Engineering (MUE'07)(MUE), Seoul, 2007, pp. 1147-1152.
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