On 7/31/07, <b class="gmail_sendername">Klaverstyn, David C</b> <<a href="mailto:David.Klaverstyn@intergraph.com">David.Klaverstyn@intergraph.com</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<div><p style=""><span style="font-size: 10pt;">span=1,1,0,ccs,hdb3,crc4</span></p></div></div></blockquote></div>I was under the impression that ccs/hdb3 was more typical of E1 service than T1.<br><br>I ran across this when looking up something on span syntax yesterday (from
<a href="http://www.voip-info.org/wiki/index.php?page=Zaptel.conf+span+syntax">http://www.voip-info.org/wiki/index.php?page=Zaptel.conf+span+syntax</a>):<br><br>Framing= how to communicate with the hardware at the other end of the line.
<br><span style="font-family: monospace;">For T1: Framing is one of <b>d4</b> or <b>esf</b>.
</span><br><span style="font-family: monospace;">For E1: Framing in one of <b>cas</b> or <b>ccs</b>.
</span><br>
<br>Coding= another parameter of the communication with the other end of line hardware.
<br><span style="font-family: monospace;">For T1: coding is one of <b>ami</b> or <b>b8zs</b>
</span><br><span style="font-family: monospace;">For E1: coding is one of <b>ami</b> or <b>hdb3</b> (E1 may also need crc4)
</span><br><br>I have NI-2 PRI service from Telus in Ontario, and my spans are set up as:<br><br>span=1,1,0,esf,b8zs<br><br>And my zapata.conf reads:<br><br>switchtype=national<br>signalling=pri_cpe<br><br>I don't have rxwink explicitly set to anything. I'm not a digital trunk expert by any means, but I thought the wink/flash/start time settings were used on trunks that don't have a dedicated signaling channel the way PRI does.
<br><br>If you leave it as pri_net, you'll probably see messages to the effect that "I think I'm PRI_NET but so does the other end".<br clear="all"><br>-- <br>j.