[asterisk-bugs] [JIRA] (ASTERISK-22019) overlap=no in chan_dahdi.conf does not work

[Lelio della Pietra (JIRA)]

Lelio della Pietra created ASTERISK-22019:
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             Summary: overlap=no in chan_dahdi.conf does not work
                 Key: ASTERISK-22019
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22019
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_dahdi
    Affects Versions: 1.8.22.0
         Environment: Linux 2.6.34, libpri 1.4.12, dahdi-linux-complete-2.6.1+2.6.1, asterisk-1.8.22.0. Three euroisdn Point-to-point BRI spans on a Digium B410p.
            Reporter: Lelio della Pietra
         Attachments: config and output.tgz

After upgrading to asterisk 1.8 from an old 1.6 a customer of mine reported that dialing became slow (I don't have old config files, so I can't say if it is a regression, sorry).

I discovered that the call is being placed in overlap mode (remote sends a SETUP ACKNOWLEDGE (13) message and call enters state 2 (Overlap Sending)). I run an euroisdn switch.

So I modified the default chan_dahdi.conf file setting overlap=no, but nothing changes. To force en-bloc dial, I have to postpone a hash (#) to the dialed number, but this will not work for me because my calls are placed they are placed through AMI directly to the channel, bypassing the extensions.conf file.

A pri show span 1 command shows that on the span overlap dial is correctly set to no.

Enclosed:

a) chan_dahdi.conf
b) users.conf - only the span definition
c) dahdi system.conf
d) a CLI capture showing a "simple" call (it takes 5 seconds to dial), a call with the hash postponed to the number (it takes less than a second to dial) and the pri show span 1 output.

Thank you in advance!

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