Author Archives: Adam

CUCM SIP Normalization and Transparency Scripting Example

Purpose: The purpose of this document is to describe handling, pass through and manipulation of SIP Alert-Info header information from 3rd party alerting systems or SIP enabled nurse calling systems such as Rauland Responder 5.  The Alert-Info header can be leveraged to play an alternative ringtone on the end device signaling a call that has a higher importance than typical calls.  A differentiated ringtone can indicate call urgency without the end user having to unclip a wireless phone from his/her belt to answer or otherwise address the call while occupied with another critical task. Challenges: CUCM acts as a back … Continue reading

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CNAM Lookup with Cisco CUBE and Open CNAM

While the majority of Internet Telephony Service Providers (ITSP’s) provide a Calling party number look up service, commonly referred to as simply “Caller ID”, there are occasions where this service are not available or limited in some capacity. For example, some carriers will provide lookups for domestic numbers but not provide information for mobile, toll free or international numbers. Continue reading

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Cisco Switch Wireshark Packet Capture

One of the most fundamental troubleshooting concepts in all of IT is to capture packets and review the data as it flows over the wire. Historically the easiest way to do this was to configure some type of SPAN port on a switch to copy the traffic to your pack capture device. With today’s less expensive and more powerful hardware it should come as no surprise that this functionality is now available on network hardware it’s self. Continue reading

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Preparing Endpoints for Webex Calling

If you have a DX80, nearly any of the 8800 phones or 7800 series phones you have endpoints needed to register to Webex calling.  The only problem with some of these endpoints, however, can be that they require a minimum version of software to register to the cloud.  As of this writing the DX platform requires at least CE 8.3.4 and the 7800 and 8800 family’s require 11.0 software or later. In some cases you may have a DX80 still on the Android version of software.  This is not supported.  In fact the conversion process can be somewhat involved a … Continue reading

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