Last week I attended a Global Knowledge course CVOICE (passing the exam gets you a CCNA Voice, and it's also apart of the CCVP curriculum). Overall it was a pretty good class, and I had a great teacher (Patrick Le).
The class went over a lot of the basics, giving a broad overview of POTS telephony and VoIP. We started out going over the basics of POTS, and configuring T1 CAS and ISDN PRIs. We then moved onto analog phones (FXS ports) being transferred over an IP WAN using VoIP with H.323 and SIP signaling. Unfortunately we never moved onto VoIP phones in lab, but we were given lecture on how it works. The class then went quite a bit into translations and advanced dial-peers, which Patrick taught quite well. Towards the end of the class we went into COR Lists, and the basics of CUBE (unfortunately ran out of time to lab up CUBE).
My main dislikes about the class were lack of VoIP phone configurations, and the complete lack of Call Manager (a separate course[s], but still would have liked to have some minor hands on with it). Minus those missing components the class was a great overview of Cisco Telephony, I suppose it makes sense since this is the class for CCNA Voice. Definitely helped me out immensely since I have very little real world experience with VoIP and analog phone configurations on Cisco devices. I plan on taking the exam in the next week or so, my lab partner already took it and passed, so I feel pretty good about it since we were on a similar level.
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