asterisk users - Feb 2006 - Problem with ZAPHFC: internal S0 hangs when hanging up

Hello all,

if I try to call from one phone on the internal S0 to another on the same S0
using zaphfc, the bus is hung up. The called phone is ringing, but I can't
talk from one phone to the other. The error I get is:

    -- Executing Dial("Zap/2-1", "ZAP/1/55|15|tr") in new
stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called 1/55
    -- Channel 0/1, span 1 got hangup, cause 42
    -- Zap/1-1 is circuit-busy
    -- Hungup 'Zap/1-1'

The called phone is still ringing, if I have hung up the calling phone. I
have to restart asterisk to get things going again. Calling from SIP to the
phones and calling from phones to external ISDN is working fine.

For a closer look to the dump, I have attached the bri debug output from
asterisk.

Asterisk is 1.2.4 compiled from newset bristuff (1k), zaphfc patched with
florz patch. 1 AVM ISDN PCI and on HFC PCI, which shares interrupt with
eth0 (if it matters).

Has anyone an idea what is going wrong here? May I provide additional
information to solve this problem?

Thanks for your help,
Sven

========================= 8< cut here 8< ============================>
Unnumbered frame:
1 > SAPI: 63  C/R: 1 EA: 0
>  TEI: 127        EA: 1
1 >   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information)
]
> 5 bytes of data
  == Primary D-Channel on span 1 down for TEI 64
1
> [ 02 81 00 00 08 01 a0 45 08 02 81 90 ]
1
> Informational frame:
1 > SAPI: 00  C/R: 1 EA: 0
>  TEI: 064        EA: 1
1 > N(S): 000   0: 0
> N(R): 000   P: 0
> 8 bytes of data
1 Starting T_200 timer
1 > Protocol Discriminator: Q.931 (8)  len=8
1 > Call Ref: len= 1 (reference 160/0xA0) (Terminator)
1 > Message type: DISCONNECT (69)
1 > [1 081  021  811  901 ]
1 > Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0  
Location: Private network serving the local user (1)
1 >                  Ext: 1  Cause: Unknown (16), class = Normal Event (1) ]
    -- Hungup 'Zap/1-1'
  == Spawn extension (macro-dial, s, 10) exited non-zero on 'Zap/2-1' in
macro 'dial'
  == Spawn extension (macro-exten-vm, s, 4) exited non-zero on 'Zap/2-1'
in
macro 'exten-vm'
  == Spawn extension (from-internal, 53, 1) exited non-zero on 'Zap/2-1'
    -- Executing Macro("Zap/2-1", "hangupcall") in new stack
    -- Executing ResetCDR("Zap/2-1", "w") in new stack
    -- Executing NoCDR("Zap/2-1", "") in new stack
    -- Executing Wait("Zap/2-1", "5") in new stack
  == Spawn extension (macro-hangupcall, s, 3) exited non-zero on
'Zap/2-1'
in macro 'hangupcall'
  == Spawn extension (from-internal, h, 1) exited non-zero on 'Zap/2-1'
    -- Hungup 'Zap/2-1'
1 -- T200 counter expired, What to do...
1 -- Retransmitting 12 bytes
1
> [ 02 81 00 01 08 01 a0 45 08 02 81 90 ]
1
> Informational frame:
1 > SAPI: 00  C/R: 1 EA: 0
>  TEI: 064        EA: 1
1 > N(S): 000   0: 0
> N(R): 000   P: 1
> 8 bytes of data
1 -- Rescheduling retransmission (1)
1 -- T200 counter expired, What to do...
1 -- Retransmitting 12 bytes
1
> [ 02 81 00 01 08 01 a0 45 08 02 81 90 ]
1
> Informational frame:
1 > SAPI: 00  C/R: 1 EA: 0
>  TEI: 064        EA: 1
1 > N(S): 000   0: 0
> N(R): 000   P: 1
> 8 bytes of data
1 -- Rescheduling retransmission (2)
1 -- T200 counter expired, What to do...
1 -- Timeout occured, restarting PRI
1 Sending TEI remove tei=64
1
> [ fe ff 03 0f 14 7f 06 81 ]
1
> Unnumbered frame:
1 > SAPI: 63  C/R: 1 EA: 0
>  TEI: 127        EA: 1
1 >   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information)
]
> 5 bytes of data
  == Primary D-Channel on span 1 down for TEI 64



-- 
Sven Fischer (Dipl.-Phys.) - FACIT Consulting GmbH
  Hausinger Str. 6 - 40764 Langenfeld
  Tel: 02173/16700-55 Fax: 02173/16700-60

Am Dienstag, 7. Februar 2006 09:38 schrieb Sven Fischer:
> Hello all,
>
> if I try to call from one phone on the internal S0 to another on the same
> S0 using zaphfc, the bus is hung up. The called phone is ringing, but I
> can't talk from one phone to the other. The error I get is:
>
>     -- Executing Dial("Zap/2-1", "ZAP/1/55|15|tr") in
new stack
>     -- Requested transfer capability: 0x00 - SPEECH
>     -- Called 1/55
>     -- Channel 0/1, span 1 got hangup, cause 42
>     -- Zap/1-1 is circuit-busy
>     -- Hungup 'Zap/1-1'
>
> The called phone is still ringing, if I have hung up the calling phone. I
> have to restart asterisk to get things going again. Calling from SIP to the
> phones and calling from phones to external ISDN is working fine.
Okay, further investigations show that if I connect just one phone to the 
NTBA, everything seems to work fine. If I plug in the second phone, the 
communication fails. Each phone works if plugged in on it's own into the 
NTBA. Termination in the NTBA should be activated, the switches are on.

Where should I look for errors? Can it be a termination problem if every phone 
works on it's own?

Sven

-- 
Sven Fischer (Dipl.-Phys.) - FACIT Consulting GmbH
  Hausinger Str. 6 - 40764 Langenfeld
  Tel: 02173/16700-55 Fax: 02173/16700-60