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RE: ISDN tip wanted

  • From: Jim Deleskie
  • Date: Thu Oct 31 11:21:15 2002

While its been many years since I've done ISDN, I do know it was quite
common for 64k call to be rejected but a 56k make it though, as I remember
from a bell tech I worked with it has to do with 'new' channels being full
and dropping to an older path that can only handle 56k.
 
But like it said its been years since I've work with ISDN.



-Jim

-----Original Message-----
From: Ian MacKinnon [mailto:ian@teliauk.com]
Sent: Thursday, October 31, 2002 10:36 AM
To: nanog@nanog.org
Subject: Re: ISDN tip wanted



Surely it can't be that, as the call has been answered.

Neil J. McRae wrote:
> 
> try making it a 56K isdn call.
> 
> Neil.
> 
> [ Charset ISO-8859-1 unsupported, converting... ]
> 
>>Hi,
>>I'm trying to establish an ISDN call between Switzerland and New-York. The
destination is in New-York, ISDN line provided by Verizon. The called is
disconnected just after being set up (see NY-router log below), and the
problem seems to be that Verizon switch does not understand the callref flag
(0x01 and 0x81) correctly.
>>
>>The funny thing is that i have another router in NY, another ISDN line
from Verizon, and i'm calling from the same number in CH and it works
perfectly...
>>
>>Does anyone have a hint for me ?
>>Thanks 
>>Andr?
>>
>>Oct 31 14:23:56.350 MET: ISDN BR0/0: RX <-  SETUP pd = 8  callref = 0x01
>>Oct 31 14:23:56.350 MET:         Bearer Capability i = 0x8890
>>Oct 31 14:23:56.350 MET:         Channel ID i = 0x89
>>Oct 31 14:23:56.350 MET:         Signal i = 0x40 - Alerting on - pattern 0

>>Oct 31 14:23:56.350 MET:         Calling Party Number i = 0x1183,
'<calling number removed>'
>>Oct 31 14:23:56.354 MET:         Called Party Number i = 0xC1, '<called
number removed>'
>>Oct 31 14:23:56.354 MET:         Locking Shift to Codeset 5
>>Oct 31 14:23:56.354 MET:         Codeset 5 IE 0x2A  i = 0x808B0B,
'<calling number removed>', 0x800109800114800114800114
>>Oct 31 14:23:56.358 MET: ISDN BR0/0: Incoming call id = 0x9E, dsl 0
>>Oct 31 14:23:56.358 MET: ISDN BR0/0: received HOST_INCOMING_CALL call_id
0x9E
>>Oct 31 14:23:56.358 MET: ISDN BR0/0: HOST_INCOMING_CALL: voice_answer_data
= FALSE
>>Oct 31 14:23:56.358 MET: ISDN BR0/0: Event: Received a DATA call from
<calling number removed> on B1 at 64 Kb/s
>>Oct 31 14:23:56.358 MET: ISDN BR0/0: RM returned call_type 0 resource type
0
>>Oct 31 14:23:56.362 MET: ISDN BR0/0: TX ->  CALL_PROC pd = 8  callref =
0x81
>>Oct 31 14:23:56.362 MET:         Channel ID i = 0x89
>>Oct 31 14:23:56.362 MET: ISDN BR0/0: isdn_send_connect(): msg 4, call id
0x9E, ces 1 bchan 0, call type DATA
>>Oct 31 14:23:56.366 MET: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state
to up
>>Oct 31 14:23:56.370 MET: %ISDN-6-CONNECT: Interface BRI0/0:1 is now
connected to <calling number removed> 
>>Oct 31 14:23:56.462 MET: ISDN BR0/0: RX <-  RELEASE_COMP pd = 8  callref =
0x01
>>Oct 31 14:23:56.462 MET:         Cause i = 0x82D1 - Invalid call reference
value 
>>Oct 31 14:23:56.466 MET: ISDN BR0/0: received HOST_DISCONNECT_ACK call_id
0x9E
>>Oct 31 14:23:56.466 MET: ISDN BR0/0: HOST_DISCONNECT_ACK: call type is
DATA
>>Oct 31 14:23:56.466 MET: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state
to down
>>Oct 31 14:23:56.666 MET:     CC: dsl 0 No CCB Src->HOST cid 0x9E, ev 0x4
ces 1
>>Oct 31 14:23:56.666 MET: ISDN BR0/0: received HOST_QUERY_RESPONSE call_id
0x9E
>>
>>
>>---------------------
>>Andre Chapuis
>>IP+ Engineering
>>Swisscom Ltd
>>Genfergasse 14
>>3050 Bern
>>+41 31 893 89 61
>>chapuis@ip-plus.net
>>CCIE #6023
>>----------------------
>>
> 
> 
> 
> 
> --
> Neil J. McRae - Alive and Kicking
> neil@DOMINO.ORG
> 
> 


-- 
Ian




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