H.323 <=> SIP Interworking

I can make an H.323 (101) call to a SIP(1234) user just fine.
Here is the TrixBox CLI monitor:

Connected to Asterisk 1.6.0.10-FONCORE-r40 currently running on trixbox1 (pid = 3141)
Verbosity is at least 3
trixbox1*CLI>
trixbox1*CLI>
trixbox1*CLI>
trixbox1*CLI>
-- Executing [1234@default:1] Macro("OOH323/(null)-3615", "exten-vm,novm,123 4") in new stack
-- Executing [s@macro-exten-vm:1] Macro("OOH323/(null)-3615", "user-callerid ") in new stack
-- Executing [s@macro-user-callerid:1] Set("OOH323/(null)-3615", "AMPUSER=10 1") in new stack
-- Executing [s@macro-user-callerid:2] GotoIf("OOH323/(null)-3615", "0?repor t") in new stack
-- Executing [s@macro-user-callerid:3] ExecIf("OOH323/(null)-3615", "1?Set(R EALCALLERIDNUM=101)") in new stack
-- Executing [s@macro-user-callerid:4] Set("OOH323/(null)-3615", "AMPUSER=") in new stack
-- Executing [s@macro-user-callerid:5] Set("OOH323/(null)-3615", "AMPUSERCID NAME=") in new stack
-- Executing [s@macro-user-callerid:6] GotoIf("OOH323/(null)-3615", "1?repor t") in new stack
-- Goto (macro-user-callerid,s,11)
-- Executing [s@macro-user-callerid:11] GotoIf("OOH323/(null)-3615", "0?cont inue") in new stack
-- Executing [s@macro-user-callerid:12] Set("OOH323/(null)-3615", "__TTL=64" ) in new stack
-- Executing [s@macro-user-callerid:13] GotoIf("OOH323/(null)-3615", "1?cont inue") in new stack
-- Goto (macro-user-callerid,s,20)
-- Executing [s@macro-user-callerid:20] NoOp("OOH323/(null)-3615", "Using Ca llerID "Ray Jender - VMware WinXPÇú_" <101>") in new stack
-- Executing [s@macro-exten-vm:2] Set("OOH323/(null)-3615", "RingGroupMethod =none") in new stack
-- Executing [s@macro-exten-vm:3] Set("OOH323/(null)-3615", "VMBOX=novm") in new stack
-- Executing [s@macro-exten-vm:4] Set("OOH323/(null)-3615", "EXTTOCALL=1234" ) in new stack
-- Executing [s@macro-exten-vm:5] Set("OOH323/(null)-3615", "CFUEXT=") in ne w stack
-- Executing [s@macro-exten-vm:6] Set("OOH323/(null)-3615", "CFBEXT=") in ne w stack
-- Executing [s@macro-exten-vm:7] Set("OOH323/(null)-3615", "RT=""") in new stack
-- Executing [s@macro-exten-vm:8] Macro("OOH323/(null)-3615", "record-enable ,1234,IN") in new stack
-- Executing [s@macro-record-enable:1] GotoIf("OOH323/(null)-3615", "1?check ") in new stack
-- Goto (macro-record-enable,s,4)
-- Executing [s@macro-record-enable:4] AGI("OOH323/(null)-3615", "recordingc heck,20100404-111242,1270404762.8") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/recordingcheck
recordingcheck,20100404-111242,1270404762.8: Inbound recording not enabled
-- AGI Script recordingcheck completed, returning 0
-- Executing [s@macro-record-enable:5] MacroExit("OOH323/(null)-3615", "") i n new stack
-- Executing [s@macro-exten-vm:9] Macro("OOH323/(null)-3615", "dial,"",tr,12 34") in new stack
-- Executing [s@macro-dial:1] GotoIf("OOH323/(null)-3615", "1?dial") in new stack
-- Goto (macro-dial,s,3)
-- Executing [s@macro-dial:3] AGI("OOH323/(null)-3615", "dialparties.agi") i n new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/dialparties.agi
dialparties.agi: Starting New Dialparties.agi
== Manager 'admin' logged on from 127.0.0.1
dialparties.agi: Caller ID name is 'Ray xxxx - VMware WinXPÇú_' number is '10 1'
dialparties.agi: Methodology of ring is 'none'
-- dialparties.agi: Added extension 1234 to extension map
-- dialparties.agi: Extension 1234 cf is disabled
-- dialparties.agi: Extension 1234 do not disturb is disabled
-- dialparties.agi: dbset CALLTRACE/1234 to 101
-- dialparties.agi: Filtered ARG3: 1234
== Manager 'admin' logged off from 127.0.0.1
-- AGI Script dialparties.agi completed, returning 0
-- Executing [s@macro-dial:7] Dial("OOH323/(null)-3615", "SIP/1234,"",tr") i n new stack
== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
== Using SIP VRTP TOS bits 136
== Using SIP VRTP CoS mark 6
-- Called 1234
-- SIP/1234-0927b0c8 is ringing
-- SIP/1234-0927b0c8 answered OOH323/(null)-3615
trixbox1*CLI>

I assume all of the above is correct?

Now, here is the SIP -> H.323 output:

=========================================================================
Connected to Asterisk 1.6.0.10-FONCORE-r40 currently running on trixbox1 (pid = 3141)
Verbosity is at least 3
trixbox1*CLI>

== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
== Using SIP VRTP TOS bits 136
== Using SIP VRTP CoS mark 6
-- Executing [101@from-internal:1] ResetCDR("SIP/1234-0922b5a8", "") in new stack
-- Executing [101@from-internal:2] NoCDR("SIP/1234-0922b5a8", "") in new stack
-- Executing [101@from-internal:3] Wait("SIP/1234-0922b5a8", "1") in new stack
-- Executing [101@from-internal:4] Playback("SIP/1234-0922b5a8", "silence/1&cannot-complete-as-dialed&check-number-dial-again,noanswer") in new stack
-- Playing 'silence/1.gsm' (language 'en')
-- Playing 'cannot-complete-as-dialed.ulaw' (language 'en')
-- Playing 'check-number-dial-again.ulaw' (language 'en')
-- Executing [101@from-internal:5] Wait("SIP/1234-0922b5a8", "1") in new stack
-- Executing [101@from-internal:6] Congestion("SIP/1234-0922b5a8", "20") in new stack
== Spawn extension (from-internal, 101, 6) exited non-zero on 'SIP/1234-0922b5a8'
-- Executing [h@from-internal:1] Macro("SIP/1234-0922b5a8", "hangupcall") in new stack
-- Executing [s@macro-hangupcall:1] ResetCDR("SIP/1234-0922b5a8", "vw") in new stack
-- Executing [s@macro-hangupcall:2] NoCDR("SIP/1234-0922b5a8", "") in new stack
-- Executing [s@macro-hangupcall:3] GotoIf("SIP/1234-0922b5a8", "1?skiprg") in new stack
-- Goto (macro-hangupcall,s,6)
-- Executing [s@macro-hangupcall:6] GotoIf("SIP/1234-0922b5a8", "1?skipblkvm") in new stack
-- Goto (macro-hangupcall,s,9)
-- Executing [s@macro-hangupcall:9] GotoIf("SIP/1234-0922b5a8", "1?theend") in new stack
-- Goto (macro-hangupcall,s,11)
-- Executing [s@macro-hangupcall:11] Hangup("SIP/1234-0922b5a8", "") in new stack
== Spawn extension (macro-hangupcall, s, 11) exited non-zero on 'SIP/1234-0922b5a8' in macro 'hangupcall'
== Spawn extension (from-internal, h, 1) exited non-zero on 'SIP/1234-0922b5a8'
trixbox1*CLI>

Any ideas why this SIP to H.323 call is not working?

Thanks,

Ray