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If someone in your corporate building makes an emergency call, will responders know where to go? Years ago a phone was always in one location, and the phone number was as good as an address for identifying where you were. With IP telephony features for mobility, and with software phones that travel with your laptop, it can be hard to identify the physical location where a call is coming from.
At Cisco, we use several approaches to providing the right location information for emergency response. And we’ve learned how a simple portion of our dial plan can have a dramatic and painful impact on our Emergency Response system. You may find these ideas helpful for configuring emergency calling and response capabilities at your own sites.
In Part 1 of this post, I described how Cisco IT addresses the first key question—about reporting on voice service availability. In this Part 2, we’ll cover the second question: How does the call sound to all of the connected parties?
Cisco IT Metrics for Measuring Call Quality
Although it seems counter-intuitive, the best source of information about voice quality may not be the people who were on the call. Of course, user trouble tickets about problems such as static and echo can be important indicators of bigger issues in a voice system. But we often find that users don’t report voice quality issues, so additional tools are needed.
Measuring the quality of voice calls that are carried across a corporate network often comes down to just two key questions:
1. Availability: Will calls go through the first time and every time?
2. Quality Metrics: How do we know how well the call sounds to all of the connected parties?
In this two-part post, I’ll describe how Cisco answers these questions through the tools and processes we use for monitoring voice call quality.