Our basic system is as follows: P4 3.0 Ghz w/ HT, 1GB PC3200 RAM, 120 GB HDD, RH 9.0 OS, * from CVS several weeks ago, working OK for routing, VM, and AA, calls in on separate PSTN lines to Adtran TSU 600, into * server through T100P card. The hardware is not taxed at all with little over 20% proc utilization ever, low mem use, etc. All Phones are SNOM 200's with various firmware revisions from 2.2t to 2.3o. Any help is appreciated. 1. We have horrible sound quality regardless of the codec we use in the phone or specify in *. Has anyone else run into this early on and found a software fix? 2. Speakerphone will not work for playing VM messages, it chops the message into unintelligible fragments of audio. Any ideas? 3. Initially we have horrible introduction of background noise into the handset earpiece which seems to quiet after there is audio on the other end. Ideas? 4. Sound quality to called parties outside our system is intermittently horrible: static filled and raspy where we have to ask people to repeat themselves many times. Could this be related to powerline noise or something like that? Lane Hoskins, MCP Network Engineer Automated Horizons Inc. Direct - 540.767.7626 Main - 540.767.7600
Lane Hoskins wrote:> Our basic system is as follows: > > P4 3.0 Ghz w/ HT, 1GB PC3200 RAM, 120 GB HDD, RH 9.0 OS, * from CVS > several weeks ago, working OK for routing, VM, and AA, calls in on > separate PSTN lines to Adtran TSU 600, into * server through T100P > card. The hardware is not taxed at all with little over 20% proc > utilization ever, low mem use, etc. All Phones are SNOM 200's with > various firmware revisions from 2.2t to 2.3o.I have finally gotten my Snom 200's to work. I upgraded them all to the 2.3o.> Any help is appreciated. > > 1. We have horrible sound quality regardless of the codec we use in > the phone or specify in *. Has anyone else run into this early on and > found a software fix?I had the same problem with sound. It happen to be my switch hub that I had. I changed it out to a good switch and for internal network I use alaw. For outside network (Over the internet) I use gsm which has sometimes has sound problems.> 2. Speakerphone will not work for playing VM messages, it chops the > message into unintelligible fragments of audio. Any ideas?Same problem as above.> 3. Initially we have horrible introduction of background noise into > the handset earpiece which seems to quiet after there is audio on the > other end. Ideas?I did not have this problem.> 4. Sound quality to called parties outside our system is > intermittently horrible: static filled and raspy where we have to ask > people to repeat themselves many times. Could this be related to > powerline noise or something like that? >If you want I can call you to explain more on what we did with our settings.> > Lane Hoskins, MCP > Network Engineer > Automated Horizons Inc. > Direct - 540.767.7626 > Main - 540.767.7600 > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
Hello, Did you set the flag in the makefile for zaptel for SMP kernels? 1. I have a couple Snom200 phones on my system running redhat with a P4 HT and haven't had any issues with horrible sound quality using 711ulaw. 2. As for the speakerphone cutout, that's to be expected, The snom200s are just half-duplex speakerphones. If you want a good speakerphone get a Polycom. 3. If you have silence suppression turned on anywhere I would turn it off. We had the same problem with our Sipura adapters until we turned off the silence supression. You could also mess with the level of echo supression and see if that makes a difference. 4. do you have your T1 set in zaptel.conf to be the primary timing source for your card? Hope that helps, MATT--- -----Original Message----- From: Lane Hoskins [mailto:lane@automatedhorizons.net] Sent: Friday, January 30, 2004 4:22 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Call quality questions Our basic system is as follows: P4 3.0 Ghz w/ HT, 1GB PC3200 RAM, 120 GB HDD, RH 9.0 OS, * from CVS several weeks ago, working OK for routing, VM, and AA, calls in on separate PSTN lines to Adtran TSU 600, into * server through T100P card. The hardware is not taxed at all with little over 20% proc utilization ever, low mem use, etc. All Phones are SNOM 200's with various firmware revisions from 2.2t to 2.3o. Any help is appreciated. 1. We have horrible sound quality regardless of the codec we use in the phone or specify in *. Has anyone else run into this early on and found a software fix? 2. Speakerphone will not work for playing VM messages, it chops the message into unintelligible fragments of audio. Any ideas? 3. Initially we have horrible introduction of background noise into the handset earpiece which seems to quiet after there is audio on the other end. Ideas? 4. Sound quality to called parties outside our system is intermittently horrible: static filled and raspy where we have to ask people to repeat themselves many times. Could this be related to powerline noise or something like that? Lane Hoskins, MCP Network Engineer Automated Horizons Inc. Direct - 540.767.7626 Main - 540.767.7600 _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Thanks... -----Original Message----- From: mattf [mailto:mattf@vicimarketing.com] Sent: Fri 1/30/2004 5:16 PM To: 'asterisk-users@lists.digium.com' Cc: Subject: RE: [Asterisk-Users] Call quality questions Hello, Did you set the flag in the makefile for zaptel for SMP kernels? Yes, we are using the SMP settings 1. I have a couple Snom200 phones on my system running redhat with a P4 HT and haven't had any issues with horrible sound quality using 711ulaw. Have tried everything - alaw, ulaw, gsm - currently using gsm 2. As for the speakerphone cutout, that's to be expected, The snom200s are just half-duplex speakerphones. If you want a good speakerphone get a Polycom. wish I'd known that before I recommended we buy 12 of them :-( :-) 3. If you have silence suppression turned on anywhere I would turn it off. We had the same problem with our Sipura adapters until we turned off the silence supression. You could also mess with the level of echo supression and see if that makes a difference. this I need to look into 4. do you have your T1 set in zaptel.conf to be the primary timing source for your card? yes Hope that helps, MATT--- -----Original Message----- From: Lane Hoskins [mailto:lane@automatedhorizons.net] Sent: Friday, January 30, 2004 4:22 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Call quality questions Our basic system is as follows: P4 3.0 Ghz w/ HT, 1GB PC3200 RAM, 120 GB HDD, RH 9.0 OS, * from CVS several weeks ago, working OK for routing, VM, and AA, calls in on separate PSTN lines to Adtran TSU 600, into * server through T100P card. The hardware is not taxed at all with little over 20% proc utilization ever, low mem use, etc. All Phones are SNOM 200's with various firmware revisions from 2.2t to 2.3o. Any help is appreciated. 1. We have horrible sound quality regardless of the codec we use in the phone or specify in *. Has anyone else run into this early on and found a software fix? 2. Speakerphone will not work for playing VM messages, it chops the message into unintelligible fragments of audio. Any ideas? 3. Initially we have horrible introduction of background noise into the handset earpiece which seems to quiet after there is audio on the other end. Ideas? 4. Sound quality to called parties outside our system is intermittently horrible: static filled and raspy where we have to ask people to repeat themselves many times. Could this be related to powerline noise or something like that? Lane Hoskins, MCP Network Engineer Automated Horizons Inc. Direct - 540.767.7626 Main - 540.767.7600 _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/ms-tnef Size: 6838 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20040130/d29fbc1a/attachment.bin