On 6/16/2012 5:38 PM, Shaun Ruffell wrote:
On Sat, Jun 16, 2012 at 04:37:06PM -0500, Vladimir Mikhelson wrote:On top of that FXO channels exhibit intermittent problems with incoming caller ID, FXS -- with DTMF detection. These two problems manifest themselves with both Digium and generic cards. It looks like it is just a deficiency in the current DAHDI implementation.Why do you believe it is a deficiency in DAHDI? The only issue that I know of related to DTMF detection is DAHLIN-241 , which you and I are currently trying to definitely establish is related to the time it takes to page Asterisk pages back into memory, which isn't really a DAHDI issue.  https://issues.asterisk.org/jira/browse/DAHLIN-241
Shaun, I respect your opinion, and the swap theory is one of the valid theories.
But interestingly enough, yesterday morning I had zero (0) bytes in the swap file and still experienced missing DTMF detection on an outgoing call.
Also, the only recent CID issue I'm aware of which was related to DAHDI was introduced in 2.6.0 and fixed in 2.6.1 . This issue was that the ring event was reported late to Asterisk, so Asterisk would bump the gains in the middle of the spill. If the line quality was marginal the callerid would be missed.  http://svnview.digium.com/svn/dahdi?view=revision&revision=10473 Are there other issues with CID detection that you are currently having? Generally CID issues aren't necesarily DAHDI related since generation and detection is done in Asterisk and not DAHDI, like DTMF detection (DTMF generation can be done in DAHDI...).
I am not sure whether it is DAHDI or Asterisk specifically, well may be one or both.
All I know is I opened support ticket with Digium, tried all their recommendations, and I am still experiencing the same CID detection intermittency. Interestingly, in my case 2.6.0 was an improvement, whereas 2.6.1 returned everything back to where it was before.
I still did not find time to file on JIRA, but I eventually will.
Here are the issues (not detailed, from memory):
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