Apr
13
We had a great response in turnout to Josh's vSeminar yesterday. Thanks to everyone who made it out, we certainly hope it was beneficial for you! A few comments from attendees in the ET helped us realize that the next Voice vSeminar, this Friday covering Simplifying Globalization and Localization, might be best held at 4pET/1pPT, rather than the 6pET/3pPT that it was originally scheduled for. So we changed it. So why a lecture on this topic? Well, every class that I have taught over the last... Read More
Jan
11
So let’s recap, we’ve discussed the how and why of Globalizing every Calling Party Number – and we recall that this occurs as the first step inside CUCM as the call arrives Inbound at any of our enterprise gateways. We’ve also taken a good look at Localizing each number – and we recall that this occurs as the last step inside the CUCM as the call leaves Outbound to each destination IP Phone. So it logically behooves us to next take a look at the task Cisco labels “Mapping Global Calling Party... Read More
Dec
15
In the last installment of this series, we took a brief look at the history of the ITU-T's E.164 recommendation, as well as, hopefully, an understanding as to why we might want to begin building dial plans in CUCM versions 7 and later in a truly Globalized format, and we took a look at the basic configuration to do so. In this post we will look at the next phase in the process, namely Localization. Read More
Dec
07
While having been covered before, there seems to still be quite a lot of confusion surrounding Cisco’s newest call routing additions and features in CUCM 7. These are best cleared up since they not only are completely fair game as testable topics for the CCIE Voice lab, but also since CUCM 8 is just about to FCS and includes a great deal of call routing enhancements of its own (such as policy-based call-routing and inter-cluster dynamic DN route building) which will only build on the complexity... Read More
Jan
15
People constantly have troubles understanding the Gatekeeper-based call routing model. In this post, we are going to discuss the basic call-routing logic. Reader is assumed to understand the most fundamental gatekeeper configuration commands. Basic Concepts The first concept is the gatekeeper technology-prefix, which is the core of the gatekeeper dynamic call-routing process. Look at the tech-prefix as a special label used to group together a set of VoIP gateways. The gateways may register... Read More

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