[Serusers] Setting tm module parameter "fr_inv_timer_avp" more than once during a call

[Jan Janak]

On 13-07-2005 16:37, reticent wrote:
> It seems that setting the "fr_inv_timer_avp" parameter more than once
> during a call is not possible.
> 
> However there is a situation where this is necessary:
> 
> 1.  VoIP ATA to VoIP ATA call with call forwarding where call forwarded
> number is a PSTN destination
> To facilitate Call Forward No Answer, the fr_inv_timer_avp is used and
> set to a value (say 12 seconds), after this timer hits a failure_block
> is run, in this failure block i rewrite the destination and check if
> this destination is a PSTN number.  If it is than I would like to change
> the fr_inv_timer_avp parameter to somthing higher due to the nature of
> PSTN termination but it does not seem to have any effect.
> 
> Has anyone experienced this problem and possible found a workaround?
> 
> Or maybe this is a known issue

  It should work as you describe. Did you receive a provisional reply
  from the PSTN gateway ? fr_inv_timer only applies after a provisional
  reply has been received. Before that fr_timer applies.

    Jan.