VoIP for Dummies
Put your phone system on your computer network and see the savings See how to get started with VoIP, how it works, and why it saves you money VoIP is techspeak for "voice over Internet protocol," but it could spell "saving big bucks" for your business! Here's where to...
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| 格式: | 图书 |
| 语言: | English |
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Wiley Publishing
2011
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| 在线阅读: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/25788 |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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