CVOICE Lesson 10: Configuring PSTN Failover, Downloadable Version
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- Copyright 2012
- Edition: 1st
- ISBN-10: 0-13-306913-3
- ISBN-13: 978-0-13-306913-6
Using an IP WAN to send phone calls between sites can reduce or eliminate toll charges. Fortunately, as seen in this video, the PSTN can be used as a backup in the event of an IP WAN failure.
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