[Asterisk-video] problems getting basic h324m_loopback() working

Klaus Darilion klaus.mailinglists at pernau.at
Wed Jan 2 04:45:38 CST 2008


Hi Jose!

CAll drops after 30 seconds are usually NAT problems where the ACK is 
not sent to the SIP client.

Watch the SIP traffic if there is ACK after INVITE-200 OK (if you see 
retransmissions of 200OK then the ACK did not make it till the SIP client).

regards
klaus

Jose M. Recio schrieb:
> I am having some problems with the first and h324m_loopback() test.
> The calling party (the handset) drops the call after aprox. 30 seconds, I
> think the problem is related with the negotiation, but not sure. Could you
> take a look, please?
> 
> Setup: 
> - Hw: Junghanns duoBRI card.
> - Sw: bristuff-0.4.0-test4.tar.gz (this includes asterisk-1.4.9, zaptel
> 1.4.4, libpri-1.4.1)
> - zaptel + qozap driver
> - Testing with Nokia N73 and Motorola V3xx.
> - It works fine with incoming and outgoing regular voice calls.
>  
> This is my extensions.conf:
> [demo]
> exten => CALLED,1,Answer()
> exten => CALLED,n,h324m_loopback()
>  
> Log attached (CALLED and CALLING numbers hidden), I will send the dumps if
> required, but do not want to flood the list. Summary:
> 
> h324m_loopback
> H245 TerminalCapabilitySet TransferRequest
> -WriteControlPDU [request]
> Encode PDU [95]
> Sending CMD [0,87]
> H245 Request MasterSlaveDetermination
> -WriteControlPDU [request]
> Encode PDU [20]
> Sending CMD [1,7]
> Sending CMD [0] - 1 left
> Received SRP_NSRP_RESPONSE [0]
> Sending CMD [1] - 0 left
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> Received SRP_NSRP_RESPONSE [1]
> app_h324m_loopback: exit
> 
> 
> 
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