Re: ISDN tip wanted

North American Network Operators Group

Re: ISDN tip wanted

From: Ian MacKinnon
Date: Thu Oct 31 10:38:16 2002

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
[email protected]
CCIE #6023
----------------------
--
Neil J. McRae - Alive and Kicking
[email protected]

--
Ian

Follow-Ups:
- Re: ISDN tip wanted Peter E. Fry
- Re: ISDN tip wanted Neil J. McRae

References:
- Re: ISDN tip wanted Neil J. McRae