November 17th, 2003
All the Chief Network Architects (CNAs) I have talked to over the past year are convinced that the direction of enterprise voice networks is clear: it is IP telephony. This is evident by the sheer fact that PBX manufacturers have virtually stopped R&D funding in those platforms and have relabeled them either as servers or gateways. What is not clear is how to get there. Some enterprises in the early days of 2000, 2001 and 2002 did large IP Telephony installations and paid a heavy price. Part of that price was the high cost of training operational staff, flaky and buggy code which created instability of the voice network, lost calls, lost dial tone, lack of scale, etc. In one case a large financial services concern lost dial tone for 5 minutes corporate wide! As its Chief Network Architect put it, ?¬¢‚Äö√á¬®?√¨it was the longest 5 minutes of my life." If you were lucky or large enough you got the attention of your IP
Telephony manufacturer, normally Cisco. If you weren´t then you got fired, which was the fate of a CIO in Seattle.
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