I'm looking for isolation suggestions or solutions. I have a 7513 using a VIP2 connected to a 2600 router. It appears that MPPP is not load balancing correctly. The ratio is between 10:1 and 20:1 on the output of the 7513 toward the 2600. The 7513 is...

pbx - fxs - 12.2(2)XT - f/r wan - 12.0(7)XK1 - fxo - pbx can't break 2nd dial tonepbx - fxo - 12.2(2)XT - f/r wan - 12.0(7)XK1 - fxs - pbx worksUser gets first dial tone, enters single digit, call gets routed and gets a second dial tone. It's the s...