Hi, We have been experiencing a problem for a while now, but recently it has started to affect our largest customers who are raising questions. Basically we have a call flow that makes the phone generate a 500 Internal Error SIP message which drops the call. The Scenario is as follows: We have a find me follow me feature and if we set it up to ring the handset for 1 ring and then ring the hsandset again for 2 rings, when the second INVITE comes into the phones, it intermittently ( 30%) of the time throws a 500 Internal Error message. As most customer have a variant for this find me follow me feature it is affecting a lot of people. We need to raise this as a fault so that it can get looked into. I have attached packet traces, but I need a list of other traces that you need in order to investigate the problem thanks Marc
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