I have some trouble with caller id on fxo port
I use cisco router 3800, fxo port
I have 2 phone line from 2 telephone company:
FXO port 1->line 1-> telephone company 1
FXO port 2->line 2-> telephone company 2
2 port are config with "caller-id enable"
When i use debug: Caller ID is show on line 1 (calling number=xxxxxx), on line 2 there is no caller id(calling number= )
When i connect 2 phone line directly to 2 analog phone, 2 phone can show calling number on its lcd screen.
Any one have suggestion ?