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One way transmision on sip

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IPGuru

Vendor
Jun 24, 2003
8,391
GB
IPO V6.0
outbound & inbound call setup are ok but the IPO cannot hear any incomming audio
outgoing audio ok
system monitor shows the IPO is recieving data packets from the sip provider.

Is there anything obvious I should be checking?


A Maintenance contract is essential, not a Luxury.
Do things on the cheap & it will cost you dear
 
1 - Look your port forwarding to be sure your RTP port pass and receive correctly
2 - Try a stun with your lan in full cone nat
3 - Look on your router firewall if you have SIP Transformation or SIP Application layer gateway
4 - Monitor a call to find the problem, the most of time if your sip have a bad configuration you gonna see it on the monitor but i'm pretty sure at 95% that a network router issue...
 
System Monitor can see Voice packets in both directions.
Sip ALG is something I forgot to check, it is a possibility



A Maintenance contract is essential, not a Luxury.
Do things on the cheap & it will cost you dear
 
What is the provider for these trunks??

Jamie Green

[bold]A[/bold]vaya [bold]R[/bold]egistered [bold]S[/bold]pecialist [bold]E[/bold]ngineer
 
So the IPO gets packets but does the phone do too?


BAZINGA!

I'm not insane, my mother had me tested!

 
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