The system asks the new internal application programming interfaces (APIs) implemented by the HFS download service to bind the filename and alias that an IP phone wants to access to their corresponding URL. Explicit binding - The create profile command triggers the system to generate the configuration and firmware files and store them in RAM or a flash memory.Before Cisco Unified CME 4.0, you could specify only a single default user and network locale for a Cisco Unified CME system.įile binding and fetching using the HTTP server can be classified into two: Using flash memory or slot 0 memory on the Cisco Unified CME router allows you to use different configuration files for each phone type or for each phone, permitting you to specify different user locales and network locales for different phones. In Cisco Unified CME 4.0 and later versions, you can use an external TFTP server to off load the TFTP server function on the Cisco Unified CME router. I've listed a couple of the more interesting tidbits below.įrom the CUCME System Administrators Guide, Pay attention to the HTTP File-Fetch Server (HFS) as an alternative to using TFTP. In order to keep this somewhat contained within this blog, I recommend you review the CUCME System Administrators Guide for information about how it uses TFTP. The function of TFTP as it pertains to CUCME can become a rather lengthy discussion and ultimately several posts by itself. Using TFTP with Call Manager Express (CUCME) When preparing to take the CCIE Voice Written exam, you'll need to have good knowledge of how TFTP is used with both CUCM and CUCME. The TFTP server is typically running on an IOS router (in the case of CUCME), or on a CUCM server within a full-blown unified communications cluster. The Trivial File Transfer Protocol (TFTP) is used to facilitate the transfer of configuration files to Cisco telephony devices, i.e., phones, in Cisco telephony solutions that utilize either CUCM or CUCME.

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