It appears that when my customer gets 3 calls on one phone (1 may be parked, another on hold,etc) and they get the 4th they sometimes lose all 4 calls. If a 7960 has 5 of it's lines configured with different numbers set to roll to the next on busy is there a limit to the number the phone can handle? I would think the receptionist would be able to transfer or park the 1st, deal with the 2nd, 3rd, etc as long as she can get to them before it rolls to the next line. Hope I worded that correctly. They have 5 7960's with 5 shared line appearances and they all help with answering calls but sometimes with high call volume appear to lose calls and claim that with 4 simultaneous calls they lose all the calls on park, hold, etc. Any ideas?