IP Telephony and Phones

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 Hello All, I have a few Cisco 7821 handsets that will not allow DTMF tones to pass to things like on-line banking. i.e "press 1 for x, press 2 for y", when i press "1" i hear the tone but the other end does nothing.It works with most other phone typ...

Hello Experts,I have an requirement to configure a SIP trunk to one of the cloud provider who has a Asterisk PBX. Requirement is to register the SIP trunk on router with the cloud pbx. Then the calling number assigned should be able to route to an ex...

Hi Experts, when i tried to collect CDR file from CUCM GUI interface, i got the attached error. Moreover, when i do some investigations, i found " ERROR Failed to Flush writer, No space left on device" In addition, when i tried to do manual puge, i f...