Hi, I have small issue with Asterisk. My customers complaining that sometimes (not always) the outgoing voice (the voice which can be heard by the user a the other end) quality is very low (stutter and sudden clicks). The problem exist in only-IP configuration and in IPtoTDM connections as well. I use alaw codecs. I know that they consume a lot of bandwidth, but the upload and download stream is about 1Mbit/s so the voice problem can't be cause by the lack of bandwidth. Does anyone meet something like that? Cheers Andrew -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060312/2dbc8628/attachment.htm
Hello, Have you optimized by chosing the correct CPU and see for MMX support before to compile Zaptel and Asterisk ? What is your server cofiguration ? How is its load ? How many simultaneous calls ? Etc... All litle details which can help to consider and understand your problem is welcome ;-) Best Regards, Francois BERGERET, France. -----Message d'origine----- De : asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] De la part de Andrew Nowrot Envoy? : dimanche 12 mars 2006 12:59 ? : asterisk-users@lists.digium.com Objet : [Asterisk-Users] Voice problem Hi, I have small issue with Asterisk. My customers complaining that sometimes (not always) the outgoing voice (the voice which can be heard by the user a the other end) quality is very low (stutter and sudden clicks). The problem exist in only-IP configuration and in IPtoTDM connections as well. I use alaw codecs. I know that they consume a lot of bandwidth, but the upload and download stream is about 1Mbit/s so the voice problem can't be cause by the lack of bandwidth. Does anyone meet something like that? Cheers Andrew -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060312/b6a66122/attachment.htm
Hi, Thanks foe so fast reply I have "old" Asterisk 1.0.7 which is running on Intel Pentium 4 3GHz. The average load is less then 30% but this voice problem is happening even with one active call. The other machine with Asterisk 1.2.4 and zaptel 1.2.3 (the same CPU and load) sometimes behave in the same way. I already exclude CPU and load to be reason of this behavior. Cheers Andrew -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060312/3137f9ca/attachment.htm
On 12 Mar 2006, at 13:42, Andrew Nowrot wrote:> Hi, > > Thanks foe so fast reply > > I have "old" Asterisk 1.0.7 which is running on Intel Pentium 4 > 3GHz. The average load is less then 30% but this voice problem is > happening even with one active call. > The other machine with Asterisk 1.2.4 and zaptel 1.2.3 (the same > CPU and load) sometimes behave in the same way. I already exclude > CPU and load to be reason of this behavior.What technology links you to the PSTN ? What is your clock source (zaptel card ? ztdummy?) Tim Panton tim@mexuar.com
Hi, I use Asterisk with junghanns.net bristuff. My PSTN technology is ISDN and I use the zaphfc ISDN card in TE mode so it synchronize itself to the clock of connected ISDN line. Cheers Andrew -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20060312/e03b26ab/attachment.htm