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<DIV>you have E1 Pri?</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV id=IncrediOriginalMessage><I>-------Original Message-------</I></DIV>
<DIV> </DIV>
<DIV id=receivestrings>
<DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>From:</B></I> <A href="mailto:asterisk-dev@lists.digium.com">asterisk-dev@lists.digium.com</A></DIV>
<DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>Date:</B></I> Tuesday, September 16, 2003 01:13:38</DIV>
<DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>To:</B></I> <A href="mailto:asterisk-dev@lists.digium.com">asterisk-dev@lists.digium.com</A></DIV>
<DIV dir=ltr style="FONT-SIZE: 11pt" <i><B>Subject:</B></I> [Asterisk-Dev] Hooking E100P straight to telco exchange without modems.</DIV></DIV>
<DIV> </DIV>
<DIV>Hello,</DIV>
<DIV> </DIV>
<DIV>I tried to connect a server with an E100P card directly to an E1 line from local</DIV>
<DIV>Telco exchange, at their premises (informal testing) without any modems in between.</DIV>
<DIV>I have used E100P successfully from my company where an E1 line from the Telco is</DIV>
<DIV>terminated on a RAD modem, and the modem out (RJ45) goes to the E100P card. However,</DIV>
<DIV>while hooking up the card directly to the telco exchange, the line does not come up.</DIV>
<DIV>The network sends a DM to the SABME from the card and the D channel is set to 'down'.</DIV>
<DIV>I can't ask too many questions there since this is an informal opportunity i got</DIV>
<DIV>to test, via a friend. I just wanted to know if anyone had any ideas before i</DIV>
<DIV>give up. Following are some observation/thoughts.</DIV>
<DIV> </DIV>
<DIV>- I'm trying to run voice (not data) over this link, using libpri of asterisk.</DIV>
<DIV>- The same line when hooked to an ISDN modem in a cisco router shows (in router terminal)</DIV>
<DIV>status as up.</DIV>
<DIV>- I may need a cross-cable, but would this cause such an error ? (I'd guess SABME wouldn't</DIV>
<DIV>at all be recognized by network since signalling will be on wrong pairs)</DIV>
<DIV>- There is a very very small chance that at the exchange side there is a modem,</DIV>
<DIV>but not on my side. I verbally checked this many times, but has no way of physically</DIV>
<DIV>verifying this. Would this cause such an error ?</DIV>
<DIV>- Would i require to put 2 modems back to back between E100P and the exchange even if</DIV>
<DIV>they are in the same building ?</DIV>
<DIV>- Would changing the extended superframe configuration make a difference ? (I'm not</DIV>
<DIV>certain that the line is framed or unframed)</DIV>
<DIV>- When the zaptel.init is run to 'start' the card, the link turns green reluctantly, but</DIV>
<DIV>keeps getting frequent, periodic yellow alarms. When libpri comes up the link goes into</DIV>
<DIV>permanent yellow alarm and the log shows "Got DM from Peer, D-Channel is down".</DIV>
<DIV> </DIV>
<DIV>would really be grateful to any pointers.</DIV>
<DIV> </DIV>
<DIV>thanks,</DIV>
<DIV>Vinod</DIV>
<DIV>_______________________________________________</DIV>
<DIV>Asterisk-Dev mailing list</DIV>
<DIV><A href="mailto:Asterisk-Dev@lists.digium.com">Asterisk-Dev@lists.digium.com</A></DIV>
<DIV><A href="http://lists.digium.com/mailman/listinfo/asterisk-dev">http://lists.digium.com/mailman/listinfo/asterisk-dev</A></DIV>
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<DIV>.</DIV></TD></TR>
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