I am using 3CX with regular analog telephone lines (PSTN trunks) on a Patton SmartNode SN4114 gateway. Today, I have no clue if someone at the office is calling me on my cellphone, or if it is someone who called from outside our office and pressed my extension, because in both cases I just see our office phone number on my cellphone's caller-id. I have seen many posts with buzzwords (Direct Forwarding versus Rebound), parameters ($OutboundCallerID and $OriginatorCallerID which apparently "were fixed in Build Version 10.22686 – Service Pack 5"), or settings (From: User Part), etc. with no real explanation of how to set them, where to set them, and what to set them to! I am looking for a non-technical step by step on how to enable showing the original caller's ID (as opposed to our company's telephone number) on my cellphone when a call gets forwarded to my cellphone. Thanks in advance for your help.