Calls are dropping, in nortel cs1000, intermittently

Any suggestion will be appreciated!

while tracing from D-channel incoming messages, i am getting two reference IDs for single call, it is taking two trunks, not sure for what reason, there are so e sleep errors in one of those trunks.

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forum798

Dear Stanley,

I reviewed few pages but my answer was not there.

Let me brief you the issue here one more time -

I have a DID xyz, it is configured on 5 phones on key 0.
Lhk is set to 4 lpk is 4
Hunt is 000.fdn is blank.am I missing anything here, I did checked the exclusive hold feature ot is there is XHD.
Please suggest if I need to check anything else I will try to put the information of a bad call sample, traces captured from dch messages.

Thank you.
Regards,