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<TITLE>[Asterisk-Users] Problem with Connecting PBX to Asterisk</TITLE>
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<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">The framing is ESF/B8ZS. But</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"></FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">have had some luck and have gotten to the point where when dialed from Asterisk, the digits reach the telrad switch and the DID that</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> have configured in the telrad switch works and rings the right extensions. However, when</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> do the reverse, there are</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">NO</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">digits reaching the</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> asterisk. Finally things worked by using e&m in zaptel.conf and em_w in</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">Zapata</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">.conf. </FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">I would</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">appreciate</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> if someone can help me figure out what could be the problem in receiving the digits from the telrad switch/pbx. I am very sure that the telrad part is working fine as</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"></FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">see that when</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> dial out, it picks up a trunk channel from the T1 connected to asterisk and dials. So it is to do with the asterisk part not reading the digits.</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">Thanks</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">--------------------------------------------------</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">What about framing? ESF/B8ZS vs D4/AMI?</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">-----Original Message-----</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">From: Karthik Natarajan</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Sent: Wed, June 22, 2005 10:01 am</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">As suggested by you, I have tried the timing parameter with 0 an 1 both</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New"> but</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">to no avail.</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Signalling I have tried are both em_w and featd (suggested by digium tech</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">support).</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Zap show channels shows all 24 channels to be ok with no alarms.</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Zttool also confirms that.</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">The problem is that the pbx (telrad) does not even seem to sense the T1</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New"> that</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">is plugged in. No yellow and no green. Only the RED LED glows. But when I</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">try a T1 loopback plugged into that the card turns green on telrad</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">suggesting that the card is fine. (T1 loopback build using a small</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New"> connector</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">with 1 to 4 and 2 to 5 connected).</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Also regarding timing, I do have 2 X100Ps installed so I wonder if this</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">needs to be primary source of timing?</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">As I mentioned earlier I am getting a GREEN on asterisk side (TE405P card)</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">while a red on the pbx side (TELRAD)</FONT></SPAN></P>
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<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Any thoughts?</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">Clock source will be important here. For phase one, you should probably</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">set asterisk to time from the PBX since the PBX is likely timing from the</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">T1 circuit. At phase two, you will likely want to reverse this having</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">your PBX clock from the Asterisk system and having Asterisk clock from</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New"> the</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">telco T1. This of course assumes that there is only 1 Telco T1 involved.</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">Timing is the first most important consideration. After that, you want</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">>></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New"> to</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">verify that both ends are using the same signalling type (it appears that</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">you are using CAS signalling). Check that your PBX is using CAS and find</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">out exactly what type. Zapata will need to be configured to use the same</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">type of signalling. Check both sides looking for any red alarms etc that</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">might indicate a cable problem. From the CLI, 'zap show channels' or</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">using zttool</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">from the command line should help you determine the status of the link.</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">Red alarms usually indicate that this end sees an out of frame condition</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">while a yellow means that the opposite side sees and out of frame. A</FONT></I></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">></FONT></SPAN><SPAN LANG="en-us"><I><FONT SIZE=2 FACE="Courier New">yellow on one side is a red on the other.</FONT></I></SPAN></P>
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<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">Karthik Natarajan</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">InfoPro Corporation</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"><FONT SIZE=2 FACE="Courier New">732-283-2589 x 241</FONT></SPAN></P>
<P ALIGN=LEFT><SPAN LANG="en-us"></SPAN><A HREF="http://lists.digium.com/mailman/listinfo/asterisk-users"><SPAN LANG="en-us"><U><FONT COLOR="#0000FF" SIZE=2 FACE="Courier New">karthik at infoprocorp.com</FONT></U></SPAN><SPAN LANG="en-us"></SPAN></A><SPAN LANG="en-us"></SPAN></P>
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