On 11/11/2009 02:08 PM, Ex Vito wrote: > We've been experiencing some tough time regarding a new Asterisk > installation > connected to the PSTN via an ISDN PRI with a Digium TE121 with the optional > VPMADT032 echo cancellation module.
It appears there may be a regression in dahdi-linux 2.2.0 with regards to the wcte12xp driver and the VPMADT032 module (as discussed https://issues.asterisk.org/view.php?id=15724). Would you be willing to try at least revision 7584 of http://svn.asterisk.org/svn/dahdi/linux/branches/2.2 and report your results on that issue? > > Extra information / question: > > A quick peek at https://issues.asterisk.org/view.php?id=15498&nbn=18 > also lead me to test loading the wcte12xp driver with "vpmsupport=0". > > The system load behaviour is exactly the same. The idle load you're seeing can be a little misleading, but essentially, once you load the drivers for both the wctdm24xxp and wcte12xp, there is a fixed cost associated with continuously moving the TDM data to/from the card. The load imposed by the drivers would only go up after this point if a) software echocan is enabled, or b) you're conferencing many calls in the kernel. Otherwise....it's fixed. -- Shaun Ruffell Digium, Inc. | Linux Kernel Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA Check us out at: www.digium.com & www.asterisk.org _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users