You can also end call for a single person or for the group too. I want to gibbed all the weapons and try it out before actually starting a new playthrough with friends. When he will pick up the phone you have to click on the merge button in order to start the conference call. If you are going to make a conference call then you have to know that the double charges will be applied if you add two peoples.
Gibbed's borderlands 2 tools save editor community resources sparktmspack/sparktmsunpack building from source code.