[Freeswitch-users] Lost Call - New call using same port

[Mr Nathan Downes]

Hi,

 

I know this is an endpoint/network issue but want to confirm this behaviour
is RFC friendly (infrastructure provider questioning it)

 

Call from ATA (NEC Fibre ONT) to FS to PSTN.  ATA calls a PSTN number and is
put on hold from PaBX on that end.  ATA either stops sending media or the
BYE is lost (either can be assumed).  Because B leg is on hold media is
received and FS continues sending to A leg but receives no RTP back.  30
mins or so pass and FS attempts to end A leg.

 

During this time ATA makes another call, sends invite using same port as
before, wireshark ends up showing 2 streams going back to ATA, one from new
call and one from "lost" other call.

 

Issue this causes is NEC ONT attempts to play the 2 streams of incoming
G711a creating interesting audio.

 

Assuming because b leg is still active it is waiting for the 1800 sec
session timer to expire?  And if the call was to a person and not on hold
music they would realise call isn't working and hang up, causing the B leg
to end and FS to close A leg anyway?

 

Thanks

 

Nathan

 

 

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