IOS XE 16.6.4 adding more CUBE licenses

[Frantisek Opravil]

Our company has bought 12 of ISR 4321 and 7 of 4331 routers like UC bundles with CUBE-10 licenses (2x FL-CUBEE-5), and NIM-1MFT-T1/E1 to NIM-4MFT-T1/E1 Multiflex Trunk Voice/Clear-channel Data T1/E1 modules for connection to ISDN trunks about 18 months ago.
The routers have IOS XE version 16.6.4 installed.
Now several PSTN providers wants us to switch from ISDN to SIP trunks. 
How can we increase number of CUBE licenses (from 30 to 120 channels) ?
Do we need another licenses and software upgrades to convert the gateways to SBC's?
Best regards
Frantisek Opravil 

[Chris Deren]

Contact your Cisco reseller to quote you CUBE licenses. Licensing can be complicated as there are options, so best to work with solid Gold partner who can offer decent discounts.

[Jaime Valencia]

+5 to Chris, if you're planning to have CUBE redundancy, make sure to say so as those are different licenses from regular CUBE licenses and you need to order the right PN.