On Thu, Nov 8, 2012 at 8:47 AM, Richard Mudgett <[email protected]> wrote:
> > I'm testing out a server with asterisk 1.8.15.0 on it. > > I'm experiencing static occurring on almost 90% of calls on this > > particular server. > > All test phones are using SIP, and calls to/from PSTN servers are > > delivered using IAX2. > > > > > > I have other production servers running 1.4.x that do not have this > > issue that use the same PSTN connections. > > I haven't seen any ethernet errors or anything like that. Load is > > minimal since this is still a test server. > > The server itself has 16GB of RAM and Dual Quad Core Xeon E5345s. > > > > > > I'm sort of baffled as to where to start looking for the root cause > > of this issue, but it appears to be isolated to only this machine. > > You might have an A-law/u-law mismatch in the audio path. That > kind of mismatch sounds like static on the line. > > Hmm, would translation from ulaw -> gsm cause that as well? I noticed in 1.8 apparently iax2 allow=ulaw is off... -- James
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