[Asterisk-Users] No audio non channels and choopy sound to PSTN network

[Fabrizio Mazzoni]

Hello all,

I just set up an asterisk box (1.0.9). Its running on slackware linux 10.2
on a dual xeon 2.8 with 2 gb of ram and scsi disks.

I have 2 tdm 04b (8 fxo modules) on this box and attached there are 40 SIP
peers (12 GXP 2000 and 28 budgetone 486)

The problem is that when people call from the PSTN net they sometimes hear
a choppy intro sound and sometimes they hear it with a low volume.

Another problem is that when people dial an extension (SIP) when they call
the asterisk box, sometimes the SIP peer and the caller cannot hear each
other or they have a flaky audio. This basically never happens when i dial
internally from SIP to SIP.

The load on the machine never exceeds 0.6

The cables that connect the PSTN to the TDM cards are about 26-27 mt long
but they are brand new.

Can anyone help me solve my problem?

Could it be also an internal QOS problem? Because when there are less
peers connected everything seems better (but noe good enough).

Best Regards,

Fabrizio Mazzoni
Macron SPA

-- 
Fabrizio Mazzoni
http://macron.com