Re: (usr-tc) Quad ana/dig modem not taking calls (another case of)
Hi Dan, Check the configuration in case the Dual E1 cas is sending out AB bits set for 11 backward which blocks calls, also the Telco could be sending Blocking. Debug Ctrl D 1 Cas Monitor Trace this allows you to see AB bits changes ,Time Stamts channel call coming in on line, Its a good starting point. Or try 2 Cas monitor trace it monitor all channels be careful this can slow down the system. Try the first trace and make a test call. Regards Ray Whelan Dan Borlovan <danb@dnttm.ro> on 25/01/2000 15:02:24 Please respond to usr-tc@lists.xmission.com Sent by: Dan Borlovan <danb@dnttm.ro> To: usr-tc@lists.xmission.com cc: (Ray Whelan/IE/3Com) Subject: (usr-tc) Quad ana/dig modem not taking calls (another case of) Hello, I have a totalcontrol chassis with the following cards: - 1 dual e1/cas - 8 digital quad modems - 6 analog/digital quad modems - 1 hiper arc - 1 hiper nmc (p5nmc) All cards have at least tcs3.5 software Modem signal source is pritdm. The dual/e1 card recognizes the modem cards. I have 2 E1 (30 channels) active. The problem is that the ana/dig modems do not take calls. All modems (both dig and ana/dig) have the same configuration. What seems to happen: - a call arives; the dual/e1 tries to communicate with the modem (status is 'dialling-in'); after about 10s failes and the caller gets a busy signal from the telco. Meantime modem shows no reaction (doesn't go off-hook) What was tried: - software reset, hardware reset, chassis powerdown/powerup - reinserting modem cards - chaging modem cards - changing modem source from pritdm to nic, inserting an analog line and making a call works - so the modem and the harc are fine - swapping slot positions for dig and ana/dig modems - the dig modems take calls, the ana/dig don't The same configuration seems to work in other places using same hardware. If you have any suggestion, I'll be glad to try. If needed I can provide debug from the dual/e1 card (the ctrl/d menu), just tell me which debug options to enable. Thanks, Dan -- Dan Borlovan <danb@dnttm.ro> System Administrator, Network Operation Center Dynamic Network Technologies - Timisoara, Romania Telefon: +40-56-204967 FAX: +40-56-220201 - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
On Tue, 25 Jan 2000, Ray Whelan wrote:
Check the configuration in case the Dual E1 cas is sending out AB bits set for 11 backward which blocks calls, also the Telco could be sending Blocking.
Is there anywhere that has good explanation of the ABCD forward/backward bits? None of my telco books has anything useful on robbed bit signaling. -Dan - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.
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Dan Hollis -
Ray Whelan