Cisco ISDN Configuration and Troubleshooting
Let us face it: ISDN is out of date. Indeed, this telephone technology dates all the way back to 1986. Nonetheless, several providers continue to utilize it more than three decades later. While some still use it for low-bandwidth network connections, the vast majority utilize it for telephony. As a network engineer, you may be required to configure an ISDN connection on a voice gateway in order to link your VoIP system to the public telephone network. If that is the case, you have arrived to the correct location. We will cover the fundamentals of Cisco ISDN Configuration and Troubleshooting setting in this post, as well as some frequent troubleshooting techniques.
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What is ISDN?
The word ISDN stands for Integrated Services Digital Network. Today, we're going right to the setup, but in case you're curious, here's a link to Wikipedia ....