<div>only thing I can think is *maybe* there's a difference between Alaw and Ulaw. other then that..... I don't know.</div>
<div> </div>
<div>Scott<br><br></div>
<div class="gmail_quote">On Jan 14, 2008 12:41 AM, Ramiz Sardar <<a href="mailto:ramizchaudhary@gmail.com">ramizchaudhary@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 1pt; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: 1.5pt solid">
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">Friends,</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">I configured routers with for modem passthrough. When my modem dial RAS number, It starts negotiation with RAS but keep negotiate and not connected. Means repeat negotiation again and again till timeout. Once it surprisingly connected but within 30 sec it disconnected. Network Topology below:
<br></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"><span lang="DA">RAS--------PBX-----Rt-A--------------------Rt-B----PBX-----------DialupUser
</span></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"><span lang="DA">And Configuration below:
</span></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">hostname Rt-B</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">isdn switch-type primary-qsig
</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">voice service voip <br><span>
</span>modem passthrough nse codec g711alaw</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"> </p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">controller E1 0/0/0<br><span>
</span>channel-group 0 timeslots 1-31 </p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">controller E1 0/1/0<br><span>
</span>pri-group timeslots 1-31</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">interface Serial0/0/0:0<span>
<br></span> ip address <a href="http://10.0.0.2/" target="_blank">10.0.0.2</a> <a href="http://255.255.255.252/" target="_blank">255.255.255.252</a><br></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">interface Serial0/1/0:15<br>
<span> </span>no ip address<br><span> </span>encapsulation hdlc<br><span> </span>isdn switch-type primary-qsig <br><span> </span>isdn overlap-receiving<br><span> </span>isdn incoming-voice voice<br><span> </span>isdn bchan-number-order ascending
<br><span> </span>no cdp enable</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">router ospf 100<br>network
<a href="http://0.0.0.0/" target="_blank">0.0.0.0</a> <a href="http://255.255.255.255/" target="_blank">255.255.255.255</a> area 0</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">dial-peer voice 786 voip<br>
<span></span> destination-pattern 786$<br><span></span> modem passthrough nse codec g711alaw<span> <br></span> session target ipv4:<a href="http://10.0.0.1/" target="_blank">10.0.0.1</a><br><span> </span>no vad<br>!<br>
dial-peer voice 785 pots<br><span> </span>incoming called-number 786$<br><span> </span>direct-inward-dial <br><span> </span>port 0/1/0:15<br> </p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">-------- Router A ---------
<br></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"> hostname Rt-A<br>isdn switch-type primary-qsig
<br>!</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">voice service voip <br><span>
</span>modem passthrough nse codec g711alaw<br>!<br>controller E1 0/0/0<br><span> </span>channel-group 0 timeslots 1-31 </p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">controller E1 0/1/0<br><span>
</span>pri-group timeslots 1-31</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">interface Serial0/0/0:0<br>
<span> </span>ip address <a href="http://10.0.0.1/" target="_blank">10.0.0.1</a> <a href="http://255.255.255.252/" target="_blank">255.255.255.252</a><br><br>router ospf 100<br> network <a href="http://0.0.0.0/" target="_blank">
0.0.0.0</a> <a href="http://255.255.255.255/" target="_blank">255.255.255.255</a> area 0<br></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">dial-peer voice 786 pots<br>
<span> </span>destination-pattern 786$<br><span> </span>direct-inward-dial<br><span> </span>port 0/1/0:15 <br><span> </span>forward-digits 3<br>!<br>dial-peer voice 785 voip<br><span> </span>modem passthrough nse codec g711alaw
<br><span> </span>incoming called-number 786$<br><span> </span>no vad <span> </span></p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">Waiting for your immediate response.......
</p>
<p style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">Best Regards </p></div>
<div>
<div></div>
<div class="Wj3C7c"><br><br>
<div class="gmail_quote">On Jan 9, 2008 9:42 PM, Scott Voll <<a href="mailto:svoll.voip@gmail.com" target="_blank">svoll.voip@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<div>Modem pass through is just like Fax passthrough. both need to run over a G711 codec.</div>
<div> </div>
<div>config is pretty simple. just add the following commands:</div>
<div> </div>
<div>H323 looks like this:</div>
<div> voice service voip<br> h323<br> modem passthrough nse codec g711ulaw</div>
<div> </div>
<div>Also make sure you have VAD turned off on the dial peer(s)</div>
<div> </div>
<div>MGCP looks like this:</div>
<div> </div>
<div>mgcp modem passthrough voip mode nse</div>
<div> </div>
<div>Scott</div>
<div> <br><br></div>
<div class="gmail_quote">
<div>
<div></div>
<div>On Jan 9, 2008 7:15 AM, Ramiz Sardar <<a href="mailto:ramizchaudhary@gmail.com" target="_blank">ramizchaudhary@gmail.com</a>> wrote:<br></div></div>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<div>
<div></div>
<div>Friends,<br><br>I am currently working on voip setup. With the existing tdm network, dialup users from different sites dial Remote Access Server in central site. When i will put routers into that network, can users be able to connect again via voip setup. Topology includes cisco 3800 routers that connect with Ericson MD110 pbx through E1 (Pri Qsig). Routers are connected point to point through E1. RAS is non-cisco.
<br><br>Existing Topology:<br><br>IP Network ---------RAS------------PBX--------------------------------------------PBX--------------Dialup User (Modem)<br><br>Topology after voip setup:<br><br>IP Network ---------RAS------------PBX---------Router-----------------------------Router--------PBX--------------Dialup User (Modem)
<br><br>With some study i come to know that there is concept of modem passthrough that can be used but someone please explain it briefly. And if someone currently using it, please write down a sample configuration according to my voip topology.
<br><br>Best Regards<br><br></div></div>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">
https://puck.nether.net/mailman/listinfo/cisco-voip</a><br></blockquote></div><br></blockquote></div><br></div></div></blockquote></div><br>