Yesterday during the annual Disaster Recovery Plan scenario of my company, I noticed that 4 of 30 branches did not dial in to DRP router and I do not know why. The case is quite simple. The branch router when loose his primary leased line connection try to connect through the backup ISDN BRI line dialing the first number and if this number is unavailable try to dial out the second one in DRP site. Unfortunately this did not work out/ From some debug messages in branch router I found out that router even do not try to dial out the second number.
Can anyone help?
Thanks in advance