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Community Member

ISDN line no Audio

                   Hi all, today one of our site in South Korea reports that they can not hear the voice when pickup call from ISDN, both incoming and outgoing are same issue. system was runnig without problem for months and there is no any change on the router and CUCM. any sugggestion?

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ISDN line no Audio

What is the protocol running in your voice gateway? Also during active  call share the output of "sh call active voice calling-number <#>". Let see the counters.

ISDN line no Audio

Reboot the router. If problem persists, blame the telco.

GTG

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