[cisco-voip] busting SBC

[IT]

Hey All,

So I have a 2801 gateway device that has been driving me nuts. Ive got a
point-to-point T1 to HQ for data and CM traffic, and a T1 PRI from SBC
for outbound calling.  Earlier today, calls got cut off, and I saw this
in my log:
Log Buffer (4096 bytes):
ial0/2/0:22, changed state to down
Jun  2 18:24:11: %LINK-5-CHANGED: Interface Serial0/2/0:23, changed
state to adm
inistratively down
Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state
to up
Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:0, changed state
to down
Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:1, changed state
to down
.................yada yada yada
Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:22, changed state
to down
Jun  2 18:56:20: %LINK-5-CHANGED: Interface Serial0/2/0:23, changed
state to adm
inistratively down
Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state
to up
Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:0, changed state
to down
Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:1, changed state
to down
...............yada yada yada................
Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:21, changed state
to down
Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:22, changed state
to down


Now, an hour later, every time I call any of the inbound lines, I get a
busy signal, and when I try to dial out, I get busy. What IOS commands
can I issue on the 2801 to show that this is an SBC problem, not an
issue with my config.  I am sick of getting blamed for these issues.
HELP!

-Avidan

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