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Softphone to Asterisk Issue

Posted on 2012-08-29
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Last Modified: 2012-09-02
Hey all,
Having a little issue with softphones within our lan. When a call comes in and dials the extension of a softphone, the user of the softphone would pick it up everything works. Once the caller hangs up, it doesn't seem to trigger any request on asterisk to the softphone that the call has been disconnected(hangup request). The line will still be busy until the user of the softphone clicks on the hang up icon on their 3cx interface. Looking at the asterisk logs doesn't seem to even trigger any hangup request to the softphone until user clicks on hangup on their computer.

I'm confused because our hardphones (cisco 7912g) all work fine so it shouldnt' be an issue with our dial plan.

Hoping someone could figure this out for me. Thks in advance.
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Question by:smoutkast
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by:José Méndez
ID: 38348361
Could you please collect a SIP debug?

from root prompt type this:

#rasterisk -r
cli> sip set debug on
cli> exit
#rasterisk -rvvvvvvvvv | tee sipdebug.log

Retry a failed call so it is traced in the logs, then exit out of the CLI to finish capturing. Please attach to this question and provided us with the calling and called numbers, and the IPs of the phone, Asterisk and provider.
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by:smoutkast
ID: 38348583
here you go thanks willy...

Softphone IP: 10.0.0.21
Asterisk IP: 10.1.0.1
Caller Num: 18620303537
e.txt
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José Méndez earned 1500 total points
ID: 38348756
So I see the call comes in through DAHDI, then sent out to the 3CX phone.  Once the call is connected after the 200 OK message, I find no further indication of a call progress tone from the DAHDI leg. Which of course translates to no SIP signaling.

Could this be an issue with disconnect supervision?:

http://www.voip-info.org/wiki/view/Asterisk+Disconnect+Supervision

I would like to see a SIP debug when a call is made to a 7921 phone to compare them, IF, the 7921 are registered to the same FreePBX machine as the 3CX phone.

Regards,
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by:smoutkast
ID: 38350821
I think you might be right about disconnect supervision....it makes sense because on an actual hardphone when caller hangs up...the user will also hang up on their end naturally....

now what are the options to solve this type of issue willy?
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Expert Comment

by:José Méndez
ID: 38351516
I couldn't solve that same issue on my house's Asterisk box.In my case it is not that extense, but still the line remains open when disconnected from the PSTN side. I would read through the link posted and or make a lot of research on the internet. I would also post to the Asterisk mailing list once the archives have been turned upside down.

HTH
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