We should be able to make a group of extenstions like say extensions 101 and 102 are in a group and when someone texts the main line extension 101 and 102 are put into a group chat with the client. The client would not know its a group chat but extensions 102 could see extensions 101 responses and extensions 101 could see 102, and they both can respond to the client as the company. This works well for 50/50 owners like my company.