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

[josemrecio at gmail.com]

Update on this one:
- Answer() has to wait for a while before returning back to
h324m_loopback(). With just Answer(), the h324m negotiation starts before
the CONNECT ACK has arrived. Answer (2000) is enough, once is working I will
try to tune and reduce it. Perhaps this is a problem with the qozap driver?

- Testing with V3xxx: a lot of BAD CRC messages appear.

- Testing with Nokia N73: no BAD CRC messages, but negotiation doesn't
complete. Any suggestions ????

*CLI> [Jan  2 13:30:20] DEBUG[2685]: pbx.c:1809 pbx_extension_helper:
Launching 'h324m_loopback'
    -- Executing [CALLED at demo:2] h324m_loopback("Zap/4-1", "") in new stack
[Jan  2 13:30:20] DEBUG[2685]: app_h324m.c:579 app_h324m_loopback:
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]
Received SRP_NSRP_RESPONSE [0]
Received SRP_NSRP_RESPONSE [0]
Received SRP_NSRP_RESPONSE [0]
Sending CMD [1] - 0 left
Received out of order SRP_NSRP_RESPONSE [0]
Received out of order SRP_NSRP_RESPONSE [0]
Received out of order SRP_NSRP_RESPONSE [0]
Received out of order SRP_NSRP_RESPONSE [0]
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]
    -- Channel 0/1, span 2 got hangup request, cause 16
[Jan  2 13:30:47] DEBUG[2685]: app_h324m.c:650 app_h324m_loopback: exit



-----Mensaje original-----
De: Jose M. Recio [mailto:josemrecio at gmail.com] 
Enviado el: lunes, 31 de diciembre de 2007 0:42
Para: 'asterisk-video at lists.digium.com'
Asunto: problems getting basic h324m_loopback() working

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