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Hi, <br />
<br />
looking for a free bulk ITL/CTL file eraser for Cisco IP phones, unfortunately CUCM does not provide such basic small tools. <br />
Trial versions does not provide help it will only show the phones having invalid ITL/CTL.
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Hi, 

looking for a free bulk ITL/CTL file eraser for Cisco IP phones, unfortunately CUCM does not provide such basic small tools. 
Trial versions does not provide help it will only show the phones having invalid ITL/CTL.

Where to find free ITL/CTL file eraser?

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.