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On Thu, Aug 24, 2000 at 10:40:02PM +0200, Gary Jennejohn wrote:
> The best way to find out what this is is to run isdntrace on the
> connection.

See the attached isdntrace.log file. There is on the one hand the
traffic on the D channel (4 bytes). On the other hand, there is
this strange traffic on the B2 channel (16 bytes each).

Regards
    Ingolf
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Ingolf Koch     ICQ#60829470     Beste Kneipe in Jena-Ost
PGP: 0x7B3B5661  213C 828E 0C92 16B5  05D0 4D5B A324 EC04

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Content-Type: text/plain; charset=us-ascii
Content-Description: ISDN trace log
Content-Disposition: attachment; filename="isdntrace.log"


=========== isdntrace controller #0 =========== started Fri Aug 25 00:26:30 2000

-- NT->TE - unit:0 - frame:000001 - time:25.08 00:26:33.307242 - length:16 -----
B2:000  ff 03 c0 21 09 0b 00 0c 72 5a de 01 00 01 5c ad       ...!....rZ....\.

-- TE->NT - unit:0 - frame:000002 - time:25.08 00:26:33.307242 - length:16 -----
B2:000  ff 03 c0 21 0a 0b 00 0c 5f f5 9a 92 00 01 5c ad       ...!...._.....\.

-- NT->TE - unit:0 - frame:000027 - time:25.08 00:26:39.146927 - length:4 ------
Dump:000  02 97 01 05                                           ....
Q921: SAP=0 (Call Control), C, TEI=75, S-Frame: RR N(R) 2 PF 1 

-- TE->NT - unit:0 - frame:000028 - time:25.08 00:26:39.146927 - length:4 ------
Dump:000  02 97 01 07                                           ....
Q921: SAP=0 (Call Control), R, TEI=75, S-Frame: RR N(R) 3 PF 1 

-- NT->TE - unit:0 - frame:000003 - time:25.08 00:26:43.306702 - length:16 -----
B2:000  ff 03 c0 21 09 0c 00 0c 72 5a de 01 00 00 00 00       ...!....rZ......

-- TE->NT - unit:0 - frame:000004 - time:25.08 00:26:43.306702 - length:16 -----
B2:000  ff 03 c0 21 0a 0c 00 0c 5f f5 9a 92 00 00 00 00       ...!...._.......

-- NT->TE - unit:0 - frame:000029 - time:25.08 00:26:49.386373 - length:4 ------
Dump:000  02 97 01 05                                           ....
Q921: SAP=0 (Call Control), C, TEI=75, S-Frame: RR N(R) 2 PF 1 

-- TE->NT - unit:0 - frame:000030 - time:25.08 00:26:49.386373 - length:4 ------
Dump:000  02 97 01 07                                           ....
Q921: SAP=0 (Call Control), R, TEI=75, S-Frame: RR N(R) 3 PF 1 

-- NT->TE - unit:0 - frame:000005 - time:25.08 00:26:53.316161 - length:16 -----
B2:000  ff 03 c0 21 09 0d 00 0c 72 5a de 01 00 01 6f b3       ...!....rZ....o.

-- TE->NT - unit:0 - frame:000006 - time:25.08 00:26:53.316161 - length:16 -----
B2:000  ff 03 c0 21 0a 0d 00 0c 5f f5 9a 92 00 01 6f b3       ...!...._.....o.

-- NT->TE - unit:0 - frame:000031 - time:25.08 00:26:59.625820 - length:4 ------
Dump:000  02 97 01 05                                           ....
Q921: SAP=0 (Call Control), C, TEI=75, S-Frame: RR N(R) 2 PF 1 

-- TE->NT - unit:0 - frame:000032 - time:25.08 00:26:59.625820 - length:4 ------
Dump:000  02 97 01 07                                           ....
Q921: SAP=0 (Call Control), R, TEI=75, S-Frame: RR N(R) 3 PF 1 

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