I have three trunks (Analog line, GSM, and a SIP provider). The GSM and SIP provider works well on Caller ID and I can successfully get the incoming number on these trunks. But unfortunately, i can’t make it work on my analog line as it is using a DTMF mode which is very difficult for me tune. I can leave that alone.
My concern is, if I get an incoming call from these two trunks (GSM and SIP), I can see the incoming number passed thru my IP phone without any problem. However, if I do use a follow me function, it reflects the caller ID number of my outbound SIP provider. To cut the story short, I don’t get the calling number if I am answering the phone via follow me. Is there a way to pass thru the caller ID to m outbound SIP provider in such a way that it will reflect the actual number of the incoming caller? Just curious although I have a thought that this is not possible as it is telco’s system that takes the number of the trunk that was used to dialed in.