Re: [Asterisk-Users] RE: Random Disconnects - or ARE they?
On Thursday 16 February 2006 12:07, Brent Torrenga wrote: > Would a PRI or BRI not use the D channel to signal busy, anyways? I have a > lot to learn about the workings of ISDN... You'd think so, but some braindead PRI implementations use inband signaling of call progress, and Asterisk uses inband call progress tones (transmit only) by default. -A. ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] RE: Random Disconnects - or ARE they?
Andrew: Yeah, busydetect=yes == problems. Duly noted! Alexander: Sorry, not a PRI line, just a TDM400P. Would a PRI or BRI not use the D channel to signal busy, anyways? I have a lot to learn about the workings of ISDN... >One other thing that I did not mention, Are you using a PRI? What are >your B-channel restarts set to?? Sincerely, Brent A. Torrenga [EMAIL PROTECTED] Torrenga Engineering, Inc. 907 Ridge Road Munster, Indiana 46321-1771 219.836.8918x325 Voice 219.836.1138 Facsimile www.torrenga.com ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] RE: Random Disconnects - or ARE they?
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Brent Torrenga > Sent: Thursday, February 16, 2006 11:17 AM > To: asterisk-users@lists.digium.com > Subject: [Asterisk-Users] RE: Random Disconnects - or ARE they? > > FOR THE LIST'S BENEFIT, THIS IS MY EMAIL TO THE LOUD PARTY ON > OUR SYSTEM, THANKS FOR ALL YOUR HELP, HOPEFULLY I HAVE THE > ISSUE SOLVED: > Snip! One other thing that I did not mention, Are you using a PRI? What are your B-channel restarts set to?? ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] RE: Random Disconnects - or ARE they?
FOR THE LIST'S BENEFIT, THIS IS MY EMAIL TO THE LOUD PARTY ON OUR SYSTEM, THANKS FOR ALL YOUR HELP, HOPEFULLY I HAVE THE ISSUE SOLVED: Well, I got a series of suggestions as to how to solve your hangup problem. My favorite suggestion: >LOL... You could try to explain that he doesn't need to shout to the >person on the other side, that the telephone transmits the sound by wire, >and not by air, so he doesn't need to shout to be heard on the other side! > ;-) That explanation is actually not far off base! Back in the day, before the telephone companies digitized their back-bones (the 70's maybe?), a phone call was actually made by temporarily creating a circuit of copper wire between the two handsets. This long length of analogue transmission introduced a certain amount of loss in the signal, depending on how far away the two endpoints were, how many switching stations were between them, etc. To overcome the loss of signal, or being heard as "too quiet", one would need to actually speak up to be adequately heard and to bring their voice over the line noise. Anyways, the consensus is that you are loud on the phone, and are scrambling the "busy detect" routine. The busy detect routine is a piece of code in the phone card drivers that tries to determine whether or not the phone company is playing a busy tone on the phone line. I am assuming that over-driving, or "clipping", the signal voltage does not allow for an accurate analysis of whether or not the sounds on the line are busy tones or not - that the system falsely determines that the line is indicating busy and then hangs it up. The transmit gain of the system could be attenuated so that you cannot peak the line, precluding this confusion in the system. However, doing so would cause all conversations to sound that much quieter to the other end of the line. I suspect it would result in people asking everyone (but you) to "speak up". I have disabled the system's busy detect function. I do not think that your network cable is faulty, there is no indication as such. Let me know if the problem persists/goes away. Sincerely, Brent A. Torrenga [EMAIL PROTECTED] Torrenga Engineering, Inc. 907 Ridge Road Munster, Indiana 46321-1771 219.836.8918x325 Voice 219.836.1138 Facsimile www.torrenga.com - ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] RE: Random Disconnects - or ARE they?
On Thursday 16 February 2006 10:16, Brent Torrenga wrote: > This sounds reasonably plausible. He just might be fooling the busy detect > routine, kinda like how a female voice can trigger DTMF detection. Ok, but why do you have busydetect turned on? I don't think it's ever done anything but cause posts on -users. :-) -A. ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] RE: Random Disconnects - or ARE they?
Doug, This sounds reasonably plausible. He just might be fooling the busy detect routine, kinda like how a female voice can trigger DTMF detection. Bob, Yeah, I will dig through the Cisco docs for a way to attenuate his mic... Good point. BTW: when editing zapata.conf, does a reload chan_zap.so make all changes effective, or do I need to reload or service asterisk restart? --Brent >Brent Torrenga wrote: >> I have one use on our PBX who has been experiencing seemingly random >> disconnects. The user is on the same LAN as everyone else, using the same >> >Brent, > >The last time I was having random disconnects, it turned out to be that >I had busydetect=yes on my zapata.conf. I changed this to no and the >issues went away. > >Doug ___ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
