[asterisk-users] Cannot hear ringback music from telco

[Steve Totaro]

Vincent Tam wrote:
> Hi Trevor,
> Thanks for your suggestion, it works by adding a Answer() in between!
> However it will make everycall in the CDR become "Answered".
> Later on I found that setting progressinband=no in sip.conf finally 
> fixed this problem!
> Best Regards,
> Vincent
So does that mean that the call is not answered yet as far as the telco 
goes?  If that is the case, how long can a call stay in this state?

I ask for inbound 800 billing.

Thanks
Steve