PBX Systems for IP Telephony by Allan Sulkin
PBX Systems for IP Telephony by Allan Sulkin PDF, ePub eBook D0wnl0ad
This work explains telephone switching systems and how the technology is evolving to accommodate voice-over-IP traffic. Unlike data networks, telephone networks are proprietary. They're purchased as complete systems and are hard if not impossible to modify. Allan Sulkin explains how to acquire, deploy and maintain a system with all the features needed to support essential new applications, and how to get optimal performance from the system you have.From reader reviews:
Lidia Hill:
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