Dear Friends.I m enclosing the log files. The ISDN is not coming up.I have checked the ISDN the line is not having any probs. But if i reset the port the ISDN is coming up for 1 minute or so. kindly give me the suggestion for it dialer map ip 10.253....

Dear Friends,I connected to routers (cisco 2611 and cisco 1750) thru serial interface back to back. I made the config on my interface i.e IP address, encapsulation. After this the link came up and i m able to ping the remote inter face.let router A h...