IP Telephony and Phones

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VoiHi everybodyI have a E1 CAS configured in a voice enabled router. Users comply because they don't see the caller phone number (ANI). Originally the configuration of the E1 was the following: controller E1 0/0/1framing NO-CRC4 ds0-group 1 timeslots...

nicocerti by Level 1
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Having an issue with one of our sites (90) total where all sites use a centralized sip service at our corporate office (also where CUCM's reside).  All of the sites are connected by a VPN Internet Connection back to corporate.  The one site's issue i...

Hello everybody,I'm trying to configure a Cisco 880 voice router to register SIP phones and serve as a gateway in a remoted office. For now I've managed to get my two phones to register on the router, i can see them in the "show voice register pool a...

Hello, My customer is running CUCM version 11.5 and trying to integrate a 3rd Party PBX (3CX) that it has in the office so that extensions on CUCM can 4 digit dial 3CX extensions. The 3CX system requires the SIP Trunk to have authentication. I know t...