[Asterisk-Users] urgent outbound dialing problem

[Andrei (MPI)]

Ryan Courtnage wrote:

>On Fri, 2004-10-12 at 10:29 -0500, Andrei (MPI) wrote:
>  
>
>>Eric Wieling aka ManxPower wrote:
>>
>>    
>>
>>>Andrei (MPI) wrote:
>>>
>>>      
>>>
>>>>I have same problem with TDM400P FXO.  Had to reload wctdm 3 times in 
>>>>a row tonight, in order to get rid of this annoying problem.
>>>>        
>>>>
>We too have struggled with this.  We don't have the problem anymore, but
>can't say for sure what fixed it.  Some more things to try:
>
>- Yet another server.  If possible, try a PC with 100% Intel components.
>We've standardized on Intel, and very rarely experience the problem
>anymore.
>
>- Ensure you are using filtered power (UPS or good powerbar ... make
>sure the cleaning lady doesn't plug her vacuum cleaner into it!)
>
>- IRQ masking with your HDD:  hdparm -u1 /dev/<drive>
>
>- Someone once suggested:
>---snip---
>We have not experience with Digium cards. However we had similar 
>problems when installing legacy pbx. The problem: local ground. One easy 
>way to test the local ground is with a voltmeter measure the voltage 
>between the CO tip wire (in open loop state) and local ground. This must 
>be less than 2 VDC and must be stable (not oscillations). Correcting the 
>local ground all problems were fixed.
>---snip---
>
>- Perhaps it's environmental?  Sounds stupid, but try running your
>server in a different room, or on a different rack.  I guessing these
>cards are very sensitive to interference/noise.
>
>I'd be very interested to know if you resolve the problem.
>Ryan
>  
>
Ryan,

I very much appreciate your comment. We'll try some more tricks.. hdparm 
is on our list now.

Thanks!
Andrei