PSTN calls disconnect in the middle of the call
lucaspiller:
Hey ianobi thanks! I also found this thread that describes the same issue and says it was fixed by turning off "DetectFarEndLongSilence" I'll try that and see if that helps, if not I'll try the other options in that section as you say.
http://www.obitalk.com/forum/index.php?topic=6678.0
It would be great if the Obi actually logged what caused an event to happen, then I would instantly know what the cause is. It seems that logging isn't very well thought out on this device, I have a bit of a complicated SIP setup so I setup syslog and turned on SIP debugging. I got messages saying the device booted up, but no debugging messages for SIP which was very useful :) In the end I had to use ngrep.
ianobi:
I agree with your comments regarding logging. With physical lines it's pretty much trial and error.
I'm also in the UK, but I don't use British Telecom. The only PSTN Disconnect Detection I'm using just now is CPC. CPC in the UK is much shorter than the North American default setting in the OBi (450ms). In the UK it can vary between 90ms and around 120ms. I have mine set to 100ms and it works fine.
lucaspiller:
Just to update: Disabling DetectFarEndLongSilence fixed the issue of disconnecting in the middle of calls. However after that I kept getting lots of 'blank' calls where there was nobody there.
The main reason why I got the Obi was to block automated callers. I had it setup to route withheld numbers to the attendant, and then have them press 1 to continue. For some reason the Obi wasn't detecting the disconnect, but was interpreting it as the user pressing 1, which resulted in these 'blank' calls. Changing CPC from 450ms to 100ms seems to have fixed that.
MarkObihai:
I've attached a configuration xml file See post below for updated file (enclosed in a .zip) that you can upload to your OBi110. This contains all UK local settings, progress and ring tones plus digit maps.
This is quite new and will be uploaded to http://www.obihai.com/docs-downloads (Where you'll find the UK config file for the rest of the OBi products)
If you fancy some additional reading, there are also quite a few posts on https://www.ukvoipforums.com about configuring the OBi for use in the UK.
drgeoff:
Quote from: MarkObihai on June 12, 2014, 11:28:57 pm
I've attached a configuration xml file (enclosed in a .zip) that you can upload to your OBi110. This contains all UK local settings, progress and ring tones plus digit maps.
This is quite new and will be uploaded to http://www.obihai.com/docs-downloads (Where you'll find the UK config file for the rest of the OBi products)
If you fancy some additional reading, there are also quite a few posts on https://www.ukvoipforums.com about configuring the OBi for use in the UK.
That file sets the CPCTimeThreshold to 9. I believe that is incorrect and should be 90 (milliseconds).
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