Hi, I have been testing asterisk 1.4 with a view to deploying it in my organisation and I am experiencing jittery voice prompts from the voice mail system. I get this jitter even if I try a simple "hello world" dial plan. I have tried the release of 1.4 and also 1.4 svn and both display this issue. I have also tried it on a dedicated linux box and on a linux install running under vmware and both exhibited this issue. Linux box is perhaps a little under powered, it is an Intel Celeron 467Mhz. I tested with asterisk niced to -18, which did not change the problem. I am using a Linksys SPA942 sip phone, using ALAW. I have tried gsm and alaw prompts but that didn't solve it. I am running Linux blue 2.6.16.20 on a debian stable machine. I have been compiling and installing asterisk from source. I have tried looking at the debug messages in asterisk but nothing seems to indicate an issue. I read somewhere that disabling X can help, but it did not in my case. I am at a loss as to how I might track down the problem and fix it. Any pointers would be greatly appreciated. Thanks, Jason
On Wed, 2007-02-28 at 10:12 +1100, Jason Lewis wrote:> Hi, > > I have been testing asterisk 1.4 with a view to deploying it in my > organisation and I am experiencing jittery voice prompts from the voice > mail system. I get this jitter even if I try a simple "hello world" dial > plan. > > I have tried the release of 1.4 and also 1.4 svn and both display this > issue. I have also tried it on a dedicated linux box and on a linux > install running under vmware and both exhibited this issue. Linux box is > perhaps a little under powered, it is an Intel Celeron 467Mhz. I tested > with asterisk niced to -18, which did not change the problem. > > I am using a Linksys SPA942 sip phone, using ALAW. I have tried gsm and > alaw prompts but that didn't solve it. > > I am running Linux blue 2.6.16.20 on a debian stable machine. I have > been compiling and installing asterisk from source. > > I have tried looking at the debug messages in asterisk but nothing seems > to indicate an issue. > > I read somewhere that disabling X can help, but it did not in my case. > > I am at a loss as to how I might track down the problem and fix it. Any > pointers would be greatly appreciated. > > Thanks,Jason-- What do you have installed, that will provide the 1Khz timing interrupts you will need to function properly? murf -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3239 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20070227/5c566e90/smime.bin
Steve Murphy wrote:> On Wed, 2007-02-28 at 10:12 +1100, Jason Lewis wrote:>> I have been testing asterisk 1.4 with a view to deploying it in my >> organisation and I am experiencing jittery voice prompts from the voice >> mail system. I get this jitter even if I try a simple "hello world" dial >> plan. >> > > What do you have installed, that will provide the 1Khz timing interrupts > you will need to function properly?Err.. I was not aware I would have to install anything to do that. I guess that could mean I have nothing installed. What should I have installed? Thanks, Jason