I'm having an issue at one of my business units. Basicailly there are 7 lines in the building all with different numbers. There is also a main number (which isn't any of these 7 lines). When we dial out on any phone it comes up showing the main number not the number being dialled from. Is there a way to sort this so the number you're dialling from is the number which shows on the other end not the main number? I've checked the lines, they all go from there respective inlets to the landline inlet, no crossovers etc.
It is causing an issue with out customer based on site who dial out on an office phone, people dial the missed call number back which comes into the warehouse.