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#108263 07/28/08 11:02 AM
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Anyone run across a PRI that drops some calls after 30-120 seconds. Not all calls. I've replaced the Universal and reloaded IMAT. ISDN protocol and variant all check out. The caller see "timeout" on their 4150 display phones.

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#108264 07/28/08 11:21 AM
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What type of Mitel system do you have??
Did this just start, or has the system been running a while??


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#108265 07/28/08 01:14 PM
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2k running latest LW. Versions between IMAT and LW checkout ok. Existing DS1 was upgraded to a PRI. Replaced PRI and reloaded IMAT db just to be sure. The number-port went well, only *some* calls that drop off and return the "timeout" display to the caller.

#108266 07/28/08 06:53 PM
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Check your Link status and see what Errors are there. Time out comes from loosing sinc. Possible problem Stratum 4 on MCC or Clock from provider getting out of range.

#108267 07/29/08 05:57 AM
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Are you redundant??
Does it happen every day, or every other day??
See where I'm going???


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#108268 07/29/08 09:47 AM
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When they changed to a PRI they may have changed the CO they are running out of - could be that you have a different switch type (DMS 250, 4ESS, etc.) if you do and didn't change it in the IMAT database it could be causing all kinds of problems.


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