Use CUBE licenses for Webex calling in PSTN trunk

[joelcontreras1]

Hello.

I hope everyone is well. I'm in the process of migrating from CUCM to Webex Calling. My client has 5 CUBE 4331, and I've already asked them to purchase the SEC license and upgrade to 17.12.2 or higher. Additionally, my client on that same gateways wants a SIP trunk to the PSTN, and here's my question. Cisco provides me, CUBE licenses, when I purchase Webex Calling licenses. I buy 1,000 and I get 250 CUBE licenses. (I think it's for 125 simultaneous calls.) Can I set up a SIP trunk to the PSTN and take advantage of these licenses? (The question doesn't sound right, but that's basically it.)

[Matt_W · Accepted solution]

If you are using the local gateway licensing with A-Flex-3 then those are provided at 1/2 the number of Professional Webex Calling Users on the subscription (as long as local gateway is selected).  Additional CUBE licenses are purchased separately. There are some processing and connection limits based on the ISR you are using.  It is best to discuss your licensing needs with a Cisco reseller to best come up with a solution based on your deployment.

https://www.ciscopress.com/articles/article.asp?p=3188200&seqNum=4#:~:text=A%20connection%20is%20configured%20to,Gateway%20based%20on%20registration%20type.

Sizing by Concurrent Calls per Local Gateway	Sizing by Number of Users Behind a Local Gateway	Trunk Type Preferred	Minimum Link Quality
~ 2000–6500	65,000	Certificate-based	Interconnect
250–~2000	20,000	Certificate-based	Over the Internet
Up to 250	2500	Registration-based	Over the Internet