search for: 5596767

In order to put a shared pbx in an office building for multiple businesses, I will have to make sure that the caller ID information going out is correct. i.e. company a's main phone number is 5551212 company b is 5572121 company c is 5596767 Now I know how to distribute incoming calls based on the number being called, but how do you set the caller id going out depending on what company is dialing out? if company a dials out, I need to be sure that their correct CID information is sent out with the call, and ANI if possible....