[Ranger093]

It's a limitation of the CDMA network. GSM doesn't have a dedicated Voice Line like we do. They use a "Digital voice" line. The reason why you have to put said person on hold is because you need to switch to your other line and then make the Numerical Pressing to emulate the rotary sounds and then it calls the person. Its a antique system compared to GSM. That's why GSM users can have more than 3 people on the line at the same time. However if I'm wrong someone who knows please tell me.