Voice Gateway Archive

  • Scrap book of commands Tracing a call flow sh isdn active !overview of calls going through the ISDN sh isdn service !overview of channels used within ISDN interface sh isdn […]

    Cisco Voice GW Commands

    Scrap book of commands Tracing a call flow sh isdn active !overview of calls going through the ISDN sh isdn service !overview of channels used within ISDN interface sh isdn […]

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  • From TAC The link below outlines how to enable detailed traces on CUCM cluster and collect them: Set Up Cisco CallManager Traces for Cisco Technical Support:http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml Now this is the […]

    Dedug SIP trunk from CM to CUBE

    From TAC The link below outlines how to enable detailed traces on CUCM cluster and collect them: Set Up Cisco CallManager Traces for Cisco Technical Support:http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml Now this is the […]

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  • Problem Description ——————- No ringback when call from Cisco IP phone to Lync server via SIP trunk. Resolution Summary —————— Applied command “voice-class sip block 183 sdp absent” under dial-peers […]

    No ringback from Cisco IP phone to Lync server 2010

    Problem Description ——————- No ringback when call from Cisco IP phone to Lync server via SIP trunk. Resolution Summary —————— Applied command “voice-class sip block 183 sdp absent” under dial-peers […]

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  • Beginning in IOS 15.1(2)T Its only the signalling traffic “call setup” that needs to be trusted not the media streams. So best just to add the CUCM servers to the […]

    Voice Toll Fraud on ios 15.x

    Beginning in IOS 15.1(2)T Its only the signalling traffic “call setup” that needs to be trusted not the media streams. So best just to add the CUCM servers to the […]

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  • Ascending and descending refer to *numerically* ascending or descending “ascending” numerically (from channel 1 to channel N) means going “top down”. “descending” numerically (the default; from channel N down to […]

    ISDN

    Ascending and descending refer to *numerically* ascending or descending “ascending” numerically (from channel 1 to channel N) means going “top down”. “descending” numerically (the default; from channel N down to […]

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