I have the cisco spa112 ATA and I'm trying to update the firmware; https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/csbpvga/spa100-200/release/source/spa112-122-rn-1-4-1-SR1/spa112-122-rn-1-4-1-SR1.html, but I cannot find any info on ATAs with a S/N: CCQ211101. I read a couple of threads and there was mention of a "RC" unit and that on the status portal it should show an option listed as "customization" and the result is "open" or "rc", but it doesn't have neither or that.
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