<p>Hi all</p>
<p>I have a server that has two TE412P (T1/E1+DSP) cards installed. One of them configured as an E1 PRI connected to PSTN and another one configured as a T1 E&M connected to Avaya PBX. Each card only uses two ports, so there are 2 E1 lines and 2 T1 lines connecting to this server. The purpose of this server is as a TDM trunk gateway that gets call from E1/T1 and then forward to an IP-PBX via SIP, or gets call from an IP-PBX and forward to E1/T1 via SIP.
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<p>Unfortunately, the server crashed (serve dead/card hanged) often when traffic is high (E1 + T1 about 50~70 active channels). Is it zaptel driver issue? The server loading actually is not so high before crash.</p>
<p>I've been investigating this issue for weeks and I'm totally out of ideas, so any help or suggestions anyone could provide would be greatly appreciatedˇK</p>
<p>Best regards<br>Ian</p>
<div>The following is my server configuration detail:<br>No IRQ shared and BIOS setting looks good! <br>CPU: INTEL Xeon 3.2GHz 800FSB 2MB cache *2<br>Memory: 512M ECC REG DDRII400 * 2 (1G)<br>Storage: 3ware SATA RAID 0 card /80G SATA HD *2
<br>OS: Linux 2.6.11-gentoo-r6 <br>Asterisk 1.2.1 + libpri-1.2.3 + Zaptel 1.2.16<br>Zaptel configuration:</div>
<div>-------------------------------<br>### Zaptel.conf --> Span: 1 (E1_4) Board 1<br>span=1,1,0,ccs,hdb3<br>bchan=1-15<br>dchan=16<br>bchan=17-31<br>### Zaptel.conf --> Span: 2 (E1_4) Board 1<br>span=2,1,0,ccs,hdb3
<br>bchan=32-46<br>dchan=47<br>bchan=48-62<br>### Zaptel.conf --> Span: 3 (E1_4) Board 1<br>span=3,1,0,ccs,hdb3<br>bchan=63-77<br>dchan=78<br>bchan=79-93<br>### Zaptel.conf --> Span: 4 (E1_4) Board 1<br>span=4,1,0,ccs,hdb3
<br>bchan=94-108<br>dchan=109<br>bchan=110-124<br>### Zaptel.conf --> Span: 5 (T1_4) Board 2<br>span=5,0,0,esf,b8zs<br>e&m=125-148<br>### Zaptel.conf --> Span: 6 (T1_4) Board 2<br>span=6,0,0,esf,b8zs<br>e&m=149-172
<br>### Zaptel.conf --> Span: 7 (T1_4) Board 2<br>span=7,0,0,esf,b8zs<br>e&m=173-196<br>### Zaptel.conf --> Span: 8 (T1_4) Board 2<br>span=8,0,0,esf,b8zs<br>e&m=197-220<br># Global data<br>loadzone = tw<br>defaultzone = tw
<br> <br>Zapata configuration:</div>
<div>-------------------------------<br>; Call ID Feature<br>hidecallerid=no<br>usecallingpres=yes<br>usecallerid=yes<br>callerid=asreceived<br>restrictcid=yes<br> <br>; Calling Record<br>amaflags=billing<br> <br>; Call Function
<br>callwaiting=yes<br>callwaitingcallerid=yes<br>threewaycalling=yes<br>transfer=yes<br>cancallforward=no<br>callreturn=yes<br>musiconhold=default<br>overlapdial=no<br>relaxdtmf=yes<br>immediate=no<br> <br>; Echo Setting
<br>echocancel=yes<br>echocancelwhenbridged=yes<br>echotraining=yes <br>rxgain=2<br>txgain=-2</div>
<div><br>context=fxo_incoming</div>
<div>;### Span: 1 (E1_4) Board 1<br>switchtype=euroisdn<br>signalling=pri_cpe<br>group=1<br>channel => 1-15</div>
<div>channel => 17-31</div>
<div>;### Span: 2 (E1_4) Board 1<br>switchtype=euroisdn<br>signalling=pri_cpe</div>
<div>group=1</div>
<div>channel =32-467<br>channel =48-62 </div>
<div>;### Span: 3 (E1_4) Board 1<br>switchtype=euroisdn<br>signalling=pri_cpe</div>
<div>group=1</div>
<div>channel =63-77<br>channel =79-93</div>
<div>;### Span: 4 (E1_4) Board 1<br>switchtype=euroisdn<br>signalling=pri_cpe</div>
<div>group=1</div>
<div>channel =94-108<br>channel =110-124</div>
<div> </div>
<div>context=pbx_incoming</div>
<div>;### Span: 5 (T1_4) Board 2<br>signalling=em</div>
<div>group=2<br>channel => 125-148<br>;### Span: 6 (T1_4) Board 2<br>signalling=em</div>
<div>group=2<br>channel => 149-172<br>;### Span: 7 (T1_4) Board 2<br>signalling=em</div>
<div>group=2<br>channel => 173-196<br>;### Span: 8 (T1_4) Board 2<br>signalling=em</div>
<div>group=2<br>channel => 197-220</div><br>