4G LTE C3 Communicator replacement

[pds22]

For others whom need to do the same, was able to replace my C3 Communicator with below 4G LTE GSM dialer available from Amazon. 
 
Was able to swap T-Mobile SIM card and working as expected.
 
TEL-SIM400G
 
https://www.amazon.com/AllAboutAdapters-Voice-WCDMA-Landline-Adapter/dp/B0988WNN8T

 

[leeleses]

Wow!  That sure looks just like an HAI/Leviton CCC!
 
I used THIS to replace my CCC --
 

ZTE MF275R 4G LTE GSM Unlocked Home Base Wireless Internet Hotspot & Phone Base