[cisco-voip] Phone proxy with ASA

[Fred Hunt]

I'm trying to use the phone proxy feature on a ASA 5520 running 8.4(3).  We are running CUCM 7.1.3 and I'm trying this with a 7941 phone.  A colleague of mine who is no longer here claims to have set this up successfully and I saw that it was mostly configured with the exception of the CTL not being enabled.  The documentation I've found on this isn't great, but I followed this: https://supportforums.cisco.com/docs/DOC-1364.  It appears that the phone is downloading the phone config file, but it just sits "Registering" before it cycles and tries again.  These are the status messages that I see:
SEP001e4a0bcc00.cnf.xml
No CTL installed
File Not Found: CTLFile.tlv

I've enabled phone-proxy debugging and tls-proxy debugging and I don't see anything indicating an issue.  I've tried a CIPC phone and the result isn't any different.  I can successfully request a phone config file using a TFTP client on a computer.

Any ideas?
Thanks,
Fred Hunt
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