IP Telephony and Phones

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Hello Guys,I have problem to upgrade my 6921 phones from 9-1-1-0When I try to upgrade them from the specified version to the last one (9-3-3-2) we have the following behavior:     - Phone reboot;     - Phone download the new firmware;     - Phone sta...

hjacquemin by Beginner
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Hi all i'm doing the configuration of CISCO3825 which used as the voice gateway.i want to use the EVM-HD-8FXS/DIDmodule to support analog fax or phone.Buti don't know which cable i should select to associate with the module . what is the cable's pro...

Hi,I have a 2801 router and want to configure it for using QSIG. I am using MGCP. I tried a lots configurations in order to get the endpoints (VWIC2-1MFT-T1/E1) registered. But, I still see them unregistered on the call Manager (device --> Gateway).B...