Hi, I had one ISDN and one serial in Cisco 1720. ISDN is configured with DDR to dial into the Hub. But I would like to have a backup to the ISDN if the ISDN is down ( services provider problem). Well I like to use the PSTN with analog modem to backup the ISDN line, can i do that ?? I only heard about the ISDN/Asyn backup the leased line, never heard how to configure Asyn to backup the ISDN line . Any ideal ? I knew it a bit crazy, but like your to help me. Thnaks a lots. Choh Koon, Tan Systems Engineer CCNP,CCDP ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
