So, today I had our entire phone system crap out on me because, for an unknown reason, our Cisco 2851 Voice-Gateways decided to revert to an old configuration that didn't include an increased ...

A telephony protocol that features prominently in the CCIE Voice and CCVP exam blueprints (as well as the real world!) is the Media Gateway Control Protocol (MGCP). MGCP is a master-slave protocol ...

To All...<BR><BR>Is there any security risks associated with having our Cisco Voicegateway sitting inside of our LAN if only the PRI is connected from the outside ...

Describe the various call types in a VoIP network. Configure analog voice interfaces as new devices are introduced into the voice path. Configure dial peers so you can add call routing intelligence to ...