The latter problem only occurs in an established call where the other party ends the call. There are some operators of a certain type of telephone numbers (adult/games) who don't ever want to hang up on a call, costing the customer lots of money.
I was wondering whether enabling keep alive option for all tcp sockets
through some kernel/os switch will help in this situation (let's skip
performance considerations) - at least it should allow detection of the broken
call leg.
For a GNUgk in proxy mode this is not that difficult to detect when it hasn't received RTP messages from an active endpoitn for a certain amount of time (2 minutes? and yes, silence detection is ofcourse an exception).
I am thinking about this, so this will be a next step:)
Maybe GNUgk should actively poll all registered endpoints with IRQ messages...
Do we have a guarantee that most gateways return a correct information in IRR?
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