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 Date: 2015-05-08 04:54:07Electronics Voice over IP Softswitch Call Control eXtensible Markup Language IP Multimedia Subsystem Videotelephony Electronic engineering Technology |
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| First Page | Document Content | |
|---|---|---|
Date: 2015-05-08 04:54:07Electronics Voice over IP Softswitch Call Control eXtensible Markup Language IP Multimedia Subsystem Videotelephony Electronic engineering Technology |
Add to Reading List |
Modern young man with mobile phone in the street.