Low dahdi_test results, garbled sound, and interrupts

I am getting low results with dahdi_test (92%), and garbled voice with a D210P card.

The card is an OpenVox D210P, serial number D21PHJ1N0WSL

The system is an Intel DH61WW motherboard, with the following software:
CentOS 5.7
Elastix-2.3.0
Asterisk-1.8.11.0
Dahdi-2.4.1.2

/etc/dahdi/system.conf:
# Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" (MASTER)
span=1,1,0,ccs,hdb3
# termtype: te
bchan=1-15,17-31
dchan=16
echocanceller=oslec,1-15,17-31

# Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2"
span=2,2,0,ccs,hdb3
# termtype: te
bchan=32-46,48-62
dchan=47
echocanceller=oslec,32-46,48-62

# Global data
loadzone = us
defaultzone = us

/etc/asterisk/dahdi-channels.conf:
; Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" (MASTER)
group=0,11
context=from-pstn
switchtype = euroisdn
signalling = pri_cpe
channel => 1-15,17-31
context = default
group = 63

; Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2"
group=0,12
context=from-pstn
switchtype = euroisdn
signalling = pri_cpe
channel => 32-46,48-62
context = default
group = 63

dmesg after loading wct4xxp driver:
dahdi: Telephony Interface Registered on major 196
dahdi: Version: 2.4.1.2
wct4xxp 0000:02:00.0: Found TE2XXP at base address fe400000, remapped to ffffc20000032000
wct4xxp 0000:02:00.0: DMA memory base of size 2048 at ffff81001ff22000. Read: ffff81001ff22400 and Write ffff81001ff22000
wct4xxp 0000:02:00.0: Firmware Version: c01a0000
wct4xxp 0000:02:00.0: Burst Mode: On
wct4xxp 0000:02:00.0: FALC Framer Version: 3.1
wct4xxp 0000:02:00.0: Board ID: 00
wct4xxp 0000:02:00.0: Reg 0: 0x1ff22400
wct4xxp 0000:02:00.0: Reg 1: 0x1ff22000
wct4xxp 0000:02:00.0: Reg 2: 0xfe400008
wct4xxp 0000:02:00.0: Reg 3: 0x00000000
wct4xxp 0000:02:00.0: Reg 4: 0x00000000
wct4xxp 0000:02:00.0: Reg 5: 0xfe400014
wct4xxp 0000:02:00.0: Reg 6: 0xc01a0000
wct4xxp 0000:02:00.0: Reg 7: 0x00001f00
wct4xxp 0000:02:00.0: Reg 8: 0x00000000
wct4xxp 0000:02:00.0: Reg 9: 0x00000000
wct4xxp 0000:02:00.0: Reg 10: 0xfe400028
wct4xxp 0000:02:00.0: Found a Wildcard: Wildcard TE210P
wct4xxp 0000:02:00.0: TE2XXP: Launching card: 0
dahdi_echocan_oslec: Registered echo canceler 'OSLEC'
dahdi: Registered tone zone 0 (United States / North America)
wct4xxp 0000:02:00.0: TE2XXP: Span 1 configured for CCS/HDB3
wct4xxp 0000:02:00.0: SPAN 1: Primary Sync Source
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000001, CIS = 0081
wct4xxp 0000:02:00.0: RCLK source set to span 1
wct4xxp 0000:02:00.0: Recovered timing mode, RCLK set to span 1
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: VPM450: Not Present
wct4xxp 0000:02:00.0: TE2XXP: Span 2 configured for CCS/HDB3
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000001, CIS = 0082
wct4xxp 0000:02:00.0: RCLK source set to span 1
wct4xxp 0000:02:00.0: Recovered timing mode, RCLK set to span 1
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: SPAN 2: Secondary Sync Source
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000001, CIS = 0081
wct4xxp 0000:02:00.0: VPM450: Not Present
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000001, CIS = 0082
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014
wct4xxp 0000:02:00.0: 2G: Got interrupt, status = 00000002, CIS = 0080
wct4xxp 0000:02:00.0: Reg 5 is fe400014

dahdi_test:
Opened pseudo dahdi interface, measuring accuracy...
91.953% 92.180% 92.753% 92.145% 92.412% 92.368% 92.340% 92.323%
91.845% 91.719% 92.756% 92.494% 92.053% 91.762% 91.874% 92.468%
91.816%
--- Results after 17 passes ---
Best: 92.756 -- Worst: 91.719 -- Average: 92.191799, Difference: 107.808201

Asterisk CLI error:
PRI Span: 2 TEI=0 MDL-ERROR (A): Got supervisory frame with F=1 in state 7(Multi-frame established)

cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 3704998 0 0 0 IO-APIC-edge timer
1: 9 0 0 0 IO-APIC-edge i8042
5: 0 0 0 0 IO-APIC-edge parport0
8: 1 0 0 0 IO-APIC-edge rtc
9: 0 0 0 0 IO-APIC-level acpi
12: 4 0 0 0 IO-APIC-edge i8042
66: 270 0 0 0 PCI-MSI hda_intel
82: 61 0 0 192774 PCI-MSI eth0
177: 5479 3213408 0 0 IO-APIC-level ehci_hcd:usb1, wct2xxp
201: 59 0 0 0 IO-APIC-level ehci_hcd:usb2
217: 5193 0 12759 0 PCI-MSI ahci
NMI: 357 270 144 148
LOC: 3704797 3704726 3704653 3704580
ERR: 0
MIS: 0

The system insists on sharing interrupt 177 with ehci_hcd:usb1 module. We unload it with command "rmmod ehci_hcd", but garbled voice and low dahdi_test results are not fixed.

Please advise on the cause of problem.

Disable the OSLEC soft echocan, then try again.
if still not working, pls send me ssh info for remote checking.
My Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

We have disabled the OSLEC soft echocan, and it doesn't improve.

We prefer to give you access by TeamViewer. I will email you the info to give you access.