What type of interface do you have in the router U, or S/T? You can check this by looking at the output of the "sh int bri0/1/1" command towards the top.
In North America, if the router's BRI interface is a U interface, it can be directly connected to the telco jack. In the rest of the world, where the Network terrmination 1 (NT-1) is built into the telco network, the router S/T interface is directly connected to the telco jack.
In North America, if you have a BRI S/T interface you are required to use an external NT-1 (modem).
Source of Layer 2 Problems often cannot be rectified at the customer site. However, Layer 2 debugs (or the interpretation of the debugs) can be provided to the telco for their reference. Hope you have asked BT or your service provider the type of ISDN switch..
Now connect one of the telephone to ISDN Modem (if it is BRI) and check for dialtome and incoming and outgoing calls -- if this is successful then. If this is not happening then check for cabling or get it corrected through service provider
Connect to router and give incoming call to the number (put debug command on) - Share the output.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...