Did you ever try to register this phones on CUCME 8.0?
I have CUCME 8.0 on the 2800 series router. I have successfully registered ip phone 7960 through SCCP and Linphone sip soft phone through voice register configuration mode. You can review the configuration below. I do not see this models at the list of supported models. http://cisco.com/en/US/prod/collateral/voicesw/ps6788/vcallcon/ps4625/data_sheet_c78-567246.html
Thanks for help
voice register global
source-address 10.62.60.217 port 5060
voice register dn 1
voice register dn 2
voice register pool 1
id mac 9CAF.CAFF.9B1A
number 1 dn 1
voice register pool 2
id mac 0021.7095.28DD
number 1 dn 2
ip source-address 10.62.60.217 port 2000
max-conferences 8 gain -6
create cnf-files version-stamp Jan 01 2002 00:00:00
ephone-dn 1 dual-line
For the 9900 phone, you should have no major problem using another type for config purposes.
But, I have never tried myself.
The 500 series IP Phones are only supported with the Small Business UC500 (520,540,560). They are not supported on CME.
This section below does not mention the 525G (As it is an older doc) but the restrictions do carry across to all 500 series models;
The Cisco Unified IP Phones 521G, 524G, 521SG, and 524SG address the communication needs of any Cisco Smart Business Communications System (SBCS) implementation. These phones are designed to work ***solely*** with the Cisco Unified Communications 500 Series for Small Business.
This is an excellent thread about the 9900 Series from the Cisco BU. It shows support for the 9900 series with CME later in 2010;
Hope this helps!
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