CHEN Xiao-lei, LIANG Po and DENG Lei. Design of clinical call voice gateway based on SIP protocol[J]. Journal of Light Industry, 2012, 27(6): 48-50. doi: 10.3969/j.issn.2095-476X.2012.06.013
Citation:
CHEN Xiao-lei, LIANG Po and DENG Lei. Design of clinical call voice gateway based on SIP protocol[J]. Journal of Light Industry, 2012, 27(6): 48-50.
doi:
10.3969/j.issn.2095-476X.2012.06.013
Design of clinical call voice gateway based on SIP protocol
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College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
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Received Date:
2012-04-21
Available Online:
2012-09-16
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Abstract
Based on the ARM9 CPU Mini2440 and using the SIP protocol,a small voice gateway which is controlled the clinical call signaling was presented. The analog signal was processed with sampling,digitization,compression coding,packaging and grouping,distribution route,storage and exchange,unzip etc,the voice communication was realized in the IP network.The conversion from complex protocol to SIP standard protocol was realized in the gateway,the signal can be transmitted in the whole building.The test results showed that the communication voice quality is good and there is no speech delay.
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References
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Proportional views
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