[asterisk-users] TDM410P - False Answer Supervision

[Nitesh Divecha]

Hello All,

Can anyone help me with False Answer Supervision problem with TDM410P 
card... I have Asterisk 1.4.25 with DAHDI 2.1.0.4 installed and 
everything works fine except the Answer supervision...

When the call hits Asterisk it sends the call to one of the TDM410 card 
and the call is answered immediately while the call is still in 
progress... Here is the debug output: -

[Oct  2 09:39:17] DEBUG[867]: chan_dahdi.c:2291 dahdi_call: Dialing 
'3602045'
[Oct  2 09:39:17] DEBUG[867]: chan_dahdi.c:2369 dahdi_call: Deferring 
dialing...
    -- Called G2/3602045
[Oct  2 09:39:18] DEBUG[867]: chan_dahdi.c:4874 dahdi_handle_event: Sent 
deferred digit string: T3602045w
[Oct  2 09:39:20] DEBUG[867]: chan_dahdi.c:4209 dahdi_handle_event: Done 
dialing, but waiting for progress detection before doing more...
    -- DAHDI/8-1 answered SIP/9223421808-091b3f50
    -- Hungup 'DAHDI/8-1'
=============================================

The connect message is sent back immediately when " DAHDI/8-1 answered 
SIP/9223421808-091b3f50" while the call is still in progress... If the 
call is hang up without answer the sender gets Normal Code 16 while it 
suppose to be "Abandoned Call".



The Polarity Reversal only works when call is ANSWERED... Here is the 
debug log: -

[Oct  2 09:20:05] DEBUG[693]: chan_dahdi.c:2291 dahdi_call: Dialing 
'3312808'
[Oct  2 09:20:05] DEBUG[693]: chan_dahdi.c:2369 dahdi_call: Deferring 
dialing...
    -- Called G2/3312808
[Oct  2 09:20:06] DEBUG[693]: chan_dahdi.c:4874 dahdi_handle_event: Sent 
deferred digit string: T3312808w
[Oct  2 09:20:08] DEBUG[693]: chan_dahdi.c:4209 dahdi_handle_event: Done 
dialing, but waiting for progress detection before doing more...
    -- DAHDI/8-1 answered SIP/9765782184-091b9678
[Oct  2 09:20:14] DEBUG[693]: chan_dahdi.c:4911 dahdi_handle_event: 
Ignore switch to REVERSED Polarity on channel 8, state 6
[Oct  2 09:20:14] DEBUG[693]: chan_dahdi.c:4931 dahdi_handle_event: 
Ignoring Polarity switch to IDLE on channel 8, state 6
[Oct  2 09:20:14] DEBUG[693]: chan_dahdi.c:4934 dahdi_handle_event: 
Polarity Reversal event occured - DEBUG 2: channel 8, state 6, pol= 0, 
aonp= 1, honp= 0, pdelay= 600, tv= 301564043
    -- Hungup 'DAHDI/8-1'
=====================================

Please help...

Cheers,
Nitesh