Hi Can someone please help with the following, We are using asterisk@home 1.5 and SIP trunks to communicate to the PSTN network. We are having some problems with the call quality. Although we can hear the other person's voice quite clear when making or receiving a call, we get complaints from the people on the other end saying that our voices sound very unclear, low and that the voice drops, therefore people on the other end can not understand what we are saying. But as I said in our end their voices sound clear. I have checked network wise and found no latency problems within our small LAN, with our VoIP provider and reaching their SIP server's IP address, also the CPU load in the asterisk server has been graphed and does not exceed the normal CPU load levels Any assistance will be very much appreciated PolAus _________________________________________________________________ Buy now @ Tradingpost.com.au http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fad%2Eau%2Edoubleclick%2Enet%2Fclk%3B24875379%3B12369854%3Ba%3Fhttp%3A%2F%2Fwww%2Etradingpost%2Ecom%2Eau%3Freferrer%3DnmsnHMetagv1&_t=752643439&_r=hotmailtagline&_m=EXT
On Monday 16 January 2006 15:20, Esteban Guana-Jarrin wrote:> We are using asterisk@home 1.5 and SIP trunks to communicate to the PSTN > network. We are having some problems with the call quality. > Although we can hear the other person's voice quite clear when making or > receiving a call, we get complaints from the people on the other end saying > that our voices sound very unclear, low and > that the voice drops, therefore people on the other end can not understand > what we are saying. But as I said in our end their voices sound clear. > > I have checked network wise and found no latency problems within our small > LAN, with our VoIP provider and reaching their SIP server's IP address, > also the CPU load in the asterisk server has been graphed and does not > exceed the normal CPU load levels > > Any assistance will be very much appreciatedYou could be saturating your upload traffic? What is the upload speed of you connection? hads -- Nap: Going back to sleep after taking a shower. -Jason
Hi, Are you sure that this is an Asterisk problem? Configure an IP phone, ATA, or softphone to connect directly with the provider, and check the quality. If it's bad, use tools such as http://www.testyourvoip.com/ and http://www.pingplotter.com/ to troubleshoot. If standalone phone works ok, compare with *. Same codec? Same packetization? If not, adjust * to match. If they're the same, please provide info on your Internet connection upload speed, codec, type of client phones, etc. --Stewart> We are using asterisk@home 1.5 and SIP trunks to communicate to the PSTN > network. We are having some problems with the call quality. > Although we can hear the other person's voice quite clear when making or > receiving a call, we get complaints from the people on the other end > saying > that our voices sound very unclear, low and > that the voice drops, therefore people on the other end can not understand > what we are saying. But as I said in our end their voices sound clear. > > I have checked network wise and found no latency problems within our small > LAN, with our VoIP provider and reaching their SIP server's IP address, > also the CPU load in the asterisk server has been graphed and does not > exceed the normal CPU load levels > > Any assistance will be very much appreciated > > PolAus
Hi Stewart,>>Are you sure that this is an Asterisk problem? Configure an IP phone, >>ATA, or softphone to >>connect directly with the provider, and check the >>quality. If it's bad, use tools such as http://www.testyourvoip.com/ and >>http://www.pingplotter.com/ to troubleshoot.>>If standalone phone works ok, compare with *. Same codec? Same >>packetization?I have configured an IP phone as per your advice and connected directly with the provider. The voice qaulity is much better, I'd say is really good same as a call on a PSTN line. In this scenario i selected the g.729 codec for the IP phone, which is the same codec I'm using in the asterisk box (8 x g.729 licenses are installed) What do you mean with the same packetization?>>If not, adjust * to match. If they're the same, please provide info on >>your Internet connection >>upload speed, codec, type of client phones, >>etc.Our internet connection upload speed is 2Mbps, G.729 codecs with the licences installed in *, client phones are the Sipura (SPA-841). The upload link it isn't being saturated, it does not go beyond 300 kbps, checked on 5 minutes average intervals. Comparing between the two scenarions, i found that the voice volume when using asterisk is much lower than when connecting the IP phone with the Voice provider directly. Can you please provide any ideas on how to troubleshoot the volume problem ? and any other comments will be very much appreciated. Paul _________________________________________________________________ New year, new job – there's more than 100,00 jobs at SEEK http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fninemsn%2Eseek%2Ecom%2Eau&_t=752315885&_r=Jan05_tagline&_m=EXT
>>You could be saturating your upload traffic? What is the upload speed of >>you connection?>>hadsHads, Our link here is a symmetric DSL (2M/2M) the upload link isn't saturated, it doesn't go above 300 kbps in 5 minutes average intervals. I have configured an IP phone and connected directly with the provider. The voice quality is much better. I selected the same codec as what I have in asterisk (g.729). The volume when calling through the asterisk server is much lower. Can you provide any comments on what you believe the problem may be and any ideas to fix it will be very much appreciated. Paul _________________________________________________________________ Buy now @ Tradingpost.com.au http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fad%2Eau%2Edoubleclick%2Enet%2Fclk%3B24875379%3B12369854%3Ba%3Fhttp%3A%2F%2Fwww%2Etradingpost%2Ecom%2Eau%3Freferrer%3DnmsnHMetagv1&_t=752643439&_r=hotmailtagline&_m=EXT
Sorry about the OT thread, but I am sure that someone could give me some advice. Nothing is more frustrated than doing a long cable run and then finding your cable is defective. OK, I have had it with the General Cable brand of network cable that we currently use for 5e cable runs. I am looking for something that is 100 percent reliable for doing cable runs. Does anyone have any recommendations? -Charles Alvis Internet Technology Group, Inc. Redmond, WA
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 calvis wrote:> Sorry about the OT thread, but I am sure that someone could give me some > advice. Nothing is more frustrated than doing a long cable run and then > finding your cable is defective. > > OK, I have had it with the General Cable brand of network cable that we > currently use for 5e cable runs. I am looking for something that is 100 > percent reliable for doing cable runs. > > Does anyone have any recommendations? > > > -Charles Alvis > Internet Technology Group, Inc. > Redmond, WA > > > > _______________________________________________ > --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 > >Hi Charles, I have total confidence with Belden, Nexans and of course AMP. Hope this helps, Francisco Neira Lima, Per? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFDzt+ebTcC0YAEvEURAi7KAKCAYnsIgo6ldeUxRSNJBIoBH0hYYACdFp6O YpGYD7LBn5WJOQpv4gB0m5k=vasW -----END PGP SIGNATURE-----