Difference between a Category C and F license

[acejavelin]

Can someone explain to me the difference in practice between a Category C license and a Category F license? Both seem to be "SIP" licenses, is their use in the system interchangeable?

Category C Phones: Indicates how many Category C phone licenses are uploaded to the system.
Category C license includes the following phones:

• Mitel 8600, 8622, 8662, and 8690 phones that are in SIP mode
• Mitel 8660 phone
• IP Single Line Adapter SLA
• Mitel 8664, 8665, and 8668 phones
• Mitel 8601 SoftPhone for Pocket PC
• Cisco 7960 SIP Phone - third-party SIP phone

Category F Phones: Indicates how many Category F phone licenses are uploaded to the system.
Category F license includes the following SIP phones:

• Mitel Unified Communicator (UC) Express SIP Softphone
• Mitel 5610 Cordless Handset and IP DECT - Digital Enhanced Cordless Telecommunications Stand
• Mitel 5603/5604/5607
• Mitel UCA SIP softphone

[Tech Electronics]

Acejavelin,

I know that the F license is the actual SIP License.

The C license is just for those specific devices and I remember something about High CPU usage on 86xx phones or maybe even a specific one when it was in SIP mode which required the C license.

Let me look in my old notes and see what I can find as I haven't had to deal with MiVO-250 licensing in a long time.

****Update****

OK, it appears as the reason for the C license is like I stated before it is just for the above list of devices as the C license came before the F license and is only used for those Dual-Mode phones.

So, you can think of it this way, the F License if for those devices that are in SIP Peers and the C license is for those devices that are created as 8600 and the IP SLA as they are dual mode devices.

The issue I remembered about the 8600 and High CPU usage was with the 8662 using when a Category C license was causing High CPU usage in versions prior to 6.3 SP6.

MIVO-1049 - CPU usage increases until system resets when Inter-Tel 8662 E phones are used in sip mode with category C sip licenses.

Thanks,

TE

[acejavelin]

Thank you very much... I just have a customer that needs a couple phones and I am down only a handful of these older "C" licenses in my bank from a long forgotten project. I will likely not go down this road then...