FXO Port choose random PSTN line!!!!!!!!

[abhishek.shah]

Hello everyone,

I have UC 520, I have five numbers from PSTN , three belongs to  Company A and Other belongs to Comapnay B.  When some one dial out from inside to outside through PSTN line it just pick any of the random line, I need to configure such a way that when some dial from comapny A it should choose one of the 3 numbers which belongs to comapny A as the same thing for company B. So basically i need to change in my outside dial plan, but dont know how to force on FXO port to choose perticular line..

Thanks,

[paolo bevilacqua]

If you just search the forum, there are many, many threads on the subject.