We also use this type of conference call. You don't need to use pin numbers. Eagle Teleconferencing operators answer participants right away. Eagle Teleconferencing operators take down information from participants like names, phone numbers, & email addresses etc. This lets us keep track of participants on conference calls and if there is any problems the operator is right there for any assistance that we might need on the conference calls. You can also have Eagle Teleconferencing send you the information by fax or email after the call is over! This is very helpful! Thank you Eagle Teleconferencing for such great conference call service!