AS5400 voip dial-peer failover setting

[heshengchun]

This is our traffic diagram:

TDM(MF-FGD) ->AS5400(SIP)-> SBC(2), at peak traffic hour, one SBC could be over-loaded, we need come with a solution in AS5400 for traffic failover. the similar solution I have found for H323 is like -

voice class h323 1

h225 timeout tcp establish 3

dial-peer voice 101 voip

destination-pattern 1111

session target ipv4:10.1.1.101

preference 0

voice class h323 1

dial-peer voice 102 voip

destination-pattern 1111

session target ipv4:10.1.1.102

preference 7

voice class h323 1

However if 10.1.1.101 is down, my test call can not be sent to 102, the call simply failed with 'timer expirey', where is the problem? Is there link regarding this setting for SIP?

Thanks,

[smalkeric]

looks like adding "retry invite 2", may be a workaround, try it.

Try:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a0080080b29.html

[heshengchun]

Thank you!

But actually sip user agent default retry invite is 6. so this may not help.