Alright, here's a specific situation. One employee has an IP phone, which it's extension is included in two ring groups. Each ring group is related to two different client phone numbers (DID extensions). The employee answers each of those differently "Thanks for calling Company A!" or "Thanks for calling Company B!" We want them to be able to do something (anything really) which will allow them to dial out to a customer and the phone number related to the customer's respective client will be the Caller ID.
Is this possible? We were advised its possible for the user to go out as one, but not for it to be able to switch caller IDs. I just don't understand how there are hundreds of companies like our very small company that are achieving this.