[Asterisk-Users] Ticking sound in wildcard tdm400p

[Michael Jia]

Hi,

My wildcard TDM 400P's FXS port(connexts to a analog phone) has ticking
noise recently.
Dialing completlyfails because of this.The only thing still working is
generating rings when
being dialed.

I have followed http://www.voip-info.org/wiki-Asterisk+Hardware .
and make sure wctdm is not shareing interrupt with any other devices.
I even run " /sbin/hdparm -u1 /dev/hda1" to avoid harddisk interference.
But the ticking is still there, what could cause the problem?

I am so frustrated, please help.

[root at mjia zaptel]# cat /proc/interrupts
CPU0
0: 946861 XT-PIC timer
1: 10 XT-PIC i8042
2: 0 XT-PIC cascade
3: 622716 XT-PIC wctdm
5: 1 XT-PIC SiS SI7012
7: 1 XT-PIC parport0
8: 1 XT-PIC rtc
9: 0 XT-PIC acpi
11: 2160 XT-PIC eth0
12: 110 XT-PIC i8042
14: 6540 XT-PIC ide0
15: 8163 XT-PIC ide1
NMI: 0
ERR: 0

Thanks
Michael
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