September 2016
Intermediate to advanced
440 pages
7h 56m
English
Let's now focus on testing VOIP-enabled services and see how we can check for various flaws that might affect VOIP services.
Voice Over Internet Protocol (VOIP) is a much less costly technology when compared to the traditional telephonic services. VOIP provides much more flexibility than the traditional ones in terms of telecommunication and offers various features, such as multiple extensions, caller ID services, logging, recording of each call made, and so on. Various companies have launched their Private Branch eXchange (PBX) on IP-enabled phones.
The traditional and the present telephonic systems are still vulnerable to interception through physical access, so that if an attacker alters the connection ...
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