If you want original caller ID to be presented on diverted/forwarding calls and are using the 2talk Cloud PBX CLI feature you will need to turn on the CLI passthrough feature.
To enable CLI Passthrough go to the Cloud PBX and
Under outbound calls > caller ID & privacy settings
Check the Enable CLI passthrough box and save.
When set, the caller ID override preferences set on this page will be ignored for diverted calls; therefore, original A party is presented to the forwarded party.