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Hi Rodney,<br>
<br>
Well, your debugs are bizarre. Here's the crux of the failing call:<br>
<br>
<blockquote type="cite">*Jun 14 15:00:00.719: Mica Modem(2/1): Call
Setup<br>
*Jun 14 15:00:00.719: csm_connect_pri_vdev: TS allocated at bp_stream
1, <br>
bp_Ch 0,vdev_common 0x613A9618<br>
*Jun 14 15:00:00.723: ISDN Se2:23: TX -> CALL_PROC pd = 8 callref
= 0x8242<br>
*Jun 14 15:00:00.723: Channel ID i = 0xA98381<br>
*Jun 14 15:00:00.723: ISDN Se2:23: TX -> ALERTING pd = 8 callref =
0x8242<br>
*Jun 14 15:00:00.771: Mica Modem(2/1): State Transition to Call Setup<br>
*Jun 14 15:00:00.771: Mica Modem(2/1): Went offhook<br>
*Jun 14 15:00:00.771: CSM_PROC_IC2_RING: CSM_EVENT_MODEM_OFFHOOK at
slot <br>
2, port 1<br>
<b><font color="#cc0000">*Jun 14 15:00:00.771:
CSM_RX_CAS_EVENT_FROM_NEAT:(006A): <br>
EVENT_CALL_IDLE at slot 2 port 1 cause 201</font></b><br>
*Jun 14 15:00:00.771: CSM_PROC_IC3_WAIT_FOR_RES_RESP: <br>
CSM_EVENT_DSX0_DISCONNECTED at slot 2, port 1<br>
*Jun 14 15:00:00.771: Mica Modem(2/1): Soft Reset<br>
*Jun 14 15:00:00.775: CSM(2/1): Enter csm_enter_disconnecting_state</blockquote>
<br>
The highlighted debug is the problem ... we are in the middle of<br>
setting up a call using ISDN, but suddenly NEAT (which is the<br>
framer code for the CT1) has told CSM (Call Switching Module, the<br>
IOS code responsible for modem call handling) that *CAS* (i.e. RBS)<br>
signaling has told it to hang up the call. If ISDN signaling is<br>
being used on a span, then NEAT should never be looking for <br>
CAS A/B bit signal transitions - something has clearly gone awry.<br>
<br>
I do see that you have some spans configured for winkstart CAS<br>
(e&m-fgb) and others for PRI, so perhaps NEAT has gotten confused.<br>
<br>
One thought: have you reconfigured one of your T1s without rebooting?<br>
You shouldn't HAVE to reboot after a reconfiguration, but maybe<br>
the NEAT logic wasn't reset after a reconfiguration? (Just a stab<br>
in the dark.)<br>
<br>
I was not able to find a known bug matching this syndrome.<br>
<br>
I do see that you are running 12.2(2)XA, which is somewhat iffy code.<br>
(It was the first 12.2 code with support for the AS5400 and for<br>
V.92/V.44.) If the reboot idea doesn't help any, I would upgrade<br>
IOS ... I'd probably go to a 12.3 mainline image such as 12.3(5e) <br>
or 12.3(15).<br>
<br>
Cheers,<br>
<br>
Aaron<br>
<br>
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