On Nov 14, 2014, at 3:21 AM, Vladimir Getmanshchuk <vladget@gmail.com> wrote:For the scenario when used multiply dialstring:<action application="bridge" data="sofia/gateway/primary/dialstring|sofia/gateway/secondary/dialstring"/>failure_causes which was sed to USER_BUSY,only works when received 486 (USER BUSY) after 18x....If it received 486 just after 100 Trying, it trying to bridge to the next gateway and ignore failure_causes=USER_BUSY...Is it normal behavior?