Okay ,, so the previous installer had SLI Ports used as door phones ,, and they did forward to Cell phone ,, but system was defaulted not sure how but it is a rural farm,, the SLI Card was bad and was replaced ,, so ports are good,, ( they don't want new sys. ) I got everything working ,, but can't get the Door Phone to external forward,, yes the external forward is on in COS,, They have 2 analog trunks,, i have tried the hot line but when u try to put the trunk 702 ,, ,, says in valid data, tried 9 also,, Also tried External Forward - turned on for x201 set to yes to dial out in 702-9xx-3xx-2xxx no go ,, tried to pick unused station and forward it that way no go,, i know that must be a way ,,maybe with a speed dial ?? Any ideas ,, it definitely worked before.Any ideas ??? Thks again.