[asterisk-users] Static on calls - v1.8.15.0

2012-11-08 Thread James Lamanna
Hi,
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.

Thanks.
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Re: [asterisk-users] Static on calls - v1.8.15.0

2012-11-08 Thread Richard Mudgett
 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.

Richard

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Re: [asterisk-users] Static on calls - v1.8.15.0

2012-11-08 Thread James Lamanna
On Thu, Nov 8, 2012 at 8:47 AM, Richard Mudgett rmudg...@digium.com 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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Re: [asterisk-users] Static on calls - v1.8.15.0

2012-11-08 Thread Carlos Alvarez
On Thu, Nov 8, 2012 at 9:34 AM, James Lamanna jlama...@gmail.com wrote:

 Hi,
 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.


I would recommend you try SIP and lock out all CODECs on both sides except
ulaw.  See what happens.

We've had this problem both because of CODED mismatch and just due to IAX's
many many bugs.


-- 
Carlos Alvarez
TelEvolve
602-889-3003
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