By most reckonings, IP telephony is already a pretty well-established and popular technical specialty. I don't think it would be a mistake to follow this path to a career specialization. In addition to the various Cisco specializations and main-line certs that focus on IP telephony, be sure to check out the numerous other credentials in the "Communications" category at gocertify.com ( http://www.gocertify.com/communications/). Starting with Cisco is a good beginning, but you should make yourself aware of other, more senior IP telephony programs and credentials worth considering as well.
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