[Asterisk-Users] One way audio [Asterisk + Innovaphone IP3000 + asterisk-oh323/h323]

[Silviu Herchi]

Hello everybody,

I’ve been trying to solve a problem for several weeks now but it really
beats me.

There are several hard phones connected to an Innovaphone 3000 VoIP gateway.
On the other side I have a SIP softphone connected to Asterisk. The problem
I have is that on incoming calls (hardphones to softphone) I only have
outgoing audio (from soft to hardphone); everything is OK when I call the
other way round.

Asterisk (I'm using 1.0.3) uses H323 to access to the Innovaphone 3000. I
tried both asterisk-oh323 0.6.5 and the supplied h323 channel with the same
results. All my machines are on the same LAN connected by a hub (there is no
NAT or firewall involved at all).

Here is the setup:

- Innovaphone 3000 (10.253.30.254)
- "Test1 <3760>" hardphone (10.253.10.102)
- GnuGK gatekeeper 2.2.0 (10.253.30.11), compiled with the required versions
of pwlib and openh323
- Asterisk 1.0.3 with either asterisk-oh323 0.6.5 or h323 channels
(10.253.30.1)
- SJphone SIP softphone on windows (10.253.30.10)

As both asterisk-oh323 and h323 behave the same way, I'm wondering whether
this could be an OpenH323 problem.

I tried an Ethereal trace, and there is no RTP whatsoever from Asterisk to
the hardphone (the only RTP streams are Asterisk <--> softphone (both ways)
and hardphone --> Asterisk (one-way!!)).

The one strange thing I noticed when I enabled debug on asterisk-h323 is
that at some point when the outgoing logical channel is open the remote ip
address is "127.0.0.1" (have a look at the attached log).

Needless to say, I googled my a** off for the few last weeks to no avail...

Thank you for your help!

Best regards,

Silviu

--------------------
*CLI>   == New H.323 Connection created.
        -- Received SETUP message
    -- Setting up Call
    --     Call token:  [ip$10.253.30.11:1119/284]
    --     Calling party name:  [Test1]
    --     Calling party number:  [3760]
    --     Called  party name:  [3776666]
    --     Called  party number:  [3776666]
        =-= In OnAnswerCall for call 284
    -- Executing StripMSD("H323/ip$10.253.30.11:1119/284", "3") in new stack
    -- Executing Goto("H323/ip$10.253.30.11:1119/284", "SIP|6666|1") in new
stack
    -- Goto (SIP,6666,1)
    -- Executing Dial("H323/ip$10.253.30.11:1119/284", "SIP/silviu.herchi")
in new stack
    -- Called silviu.herchi
    -- SIP/silviu.herchi-b027 is ringing
        Sending alerting
        -- Received Facility message... 
        -- Received Facility message... 
        -- Received Facility message... 
        -- Received Facility message... 
        -- Received Facility message... 
        =*= In CreateRealTimeLogicalChannel for call 284
                -- externalIpAddress: 10.253.30.1
                -- externalPort: 16246
                -- SessionID: 1
                -- Direction: IsReceiver
         -- Started logical channel: receiving G.711-ALaw-64k{sw}
                -- channelsOpen = 1
                RTP channel id 1 parameters:
                -- remoteIpAddress: 10.253.30.102
                -- remotePort: 16722
                -- ExternalIpAddress: 10.253.30.1
                -- ExternalPort: 16246
    -- SIP/silviu.herchi-b027 answered H323/ip$10.253.30.11:1119/284
        answering call
        =*= In CreateRealTimeLogicalChannel for call 284
                -- externalIpAddress: 10.253.30.1
                -- externalPort: 16246
                -- SessionID: 1
                -- Direction: IsTransmitter
         -- Started logical channel: sending G.711-ALaw-64k{sw}
                -- channelsOpen = 2
                RTP channel id 1 parameters:
                -- remoteIpAddress: 127.0.0.1		#WHY 127.0.0.1 ???
                -- remotePort: 2070
                -- ExternalIpAddress: 10.253.30.1
                -- ExternalPort: 16246
        =-= In OnConnectionEstablished for call 284
                -- Connection Established with "Test1 (3760) [10.253.30.11]"
        -- Received Facility message... 
        =-= In OnReceivedAckPDU for call 284
  == Spawn extension (SIP, 6666, 1) exited non-zero on
'H323/ip$10.253.30.11:1119/284'
        -- ClearCall: Request to clear call with token
ip$10.253.30.11:1119/284
        -- Sending RELEASE COMPLETE
                channelsOpen = 1
                channelsOpen = 0
 -- Call with Test1 (3760) [10.253.30.11] completed (EndedByLocalUser)
        == H.323 Connection deleted.

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