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Old 06-18-2014, 12:42 AM
sunilkumarv sunilkumarv is offline
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Good day,

Its difficult to say what is going on, If the internal calls (extension to extension) does not have any issue, then the Best approach is to run a MST on the ISDN trunk and see if service provider is dropping the call or if its is CM.

Regards
Sunil
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