Циска работает в качестве VoIP шлюза, к АТС привязана PRI (DSS1), синхру берет от нее же , режим USER. Работала без сбоев и "вдруг", стала перезагружаться. Посоветуйте что с этим делать, как побороть глюк?
#sh ver:
Cisco Internetwork Operating System Software
IOS (tm) 3600 Software (C3640-JSX-M), Version 12.3(10a), RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Fri 22-Oct-04 19:17 by kellythw
Image text-base: 0x60008B00, data-base: 0x61F56000

ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

CONTTEL-ROUTER3640 uptime is 55 minutes
System returned to ROM by unknown reload cause - reason ptr 0xBFC2B644, PC 0x60452AC0, address 0x0 at 16:03:27 MSD Thu Jun 8 2006
System restarted at 16:06:30 MSD Thu Jun 8 2006
System image file is "flash:c3640-jsx-mz.123-10a.bin"

cisco 3640 (R4700) processor (revision 0x00) with 105472K/25600K bytes of memory.
Processor board ID 26878603
R4700 CPU at 100MHz, Implementation 33, Rev 1.0
Channelized E1, Version 1.0.
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
TN3270 Emulation software.
Primary Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
31 Serial network interface(s)
1 Channelized E1/PRI port(s)
DRAM configuration is 64 bits wide with parity disabled.
125K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

#sh stacks:
Minimum process stacks:
Free/Size   Name
5624/6000   SPAN Subsystem
5296/6000   CDP Protocol
1940/3000   allegro libretto init
11284/12000  Router Init
5748/12000  Init
5448/6000   RADIUS INITCONFIG
34844/36000  TCP Command
9628/12000  Virtual Exec

Interrupt level stacks:
Level    Called Unused/Size  Name
  1     2090326   6052/9000  Network interfaces
  2      102438   8620/9000  DMA/Timer Interrupt
  3        3437   8292/9000  PA Management Int Handler
  4       10006   8628/9000  Console Uart
  5           0   9000/9000  External Interrupt
  7      864654   8604/9000  NMI Interrupt Handler

System was restarted by unknown reload cause - reason ptr 0xBFC2B644, PC 0x60452AC0, address 0x0 at 16:03:27 MSD Thu Jun 8 2006
3600 Software (C3640-JSX-M), Version 12.3(10a), RELEASE SOFTWARE (fc2)
Compiled Fri 22-Oct-04 19:17 by kellythw (current version)
Image text-base: 0x60008B00, data-base: 0x61F56000

Stack trace from system failure:
FP: 0x64455BE0, RA: 0x60452AC0
FP: 0x64455BE0, RA: 0x61799118
FP: 0x64455C18, RA: 0x617B169C
FP: 0x64455C78, RA: 0x617B19A4
FP: 0x64455DD8, RA: 0x617B9D2C
FP: 0x64455E28, RA: 0x6170D608
FP: 0x64455E50, RA: 0x6170E360
FP: 0x64455E78, RA: 0x6170E538