>>>> <excerpt><smaller>Hi, </smaller> <smaller>We have a 4004 with 5.0p26 with two T1's for our dialups. We are both the ISP and the telco. When we first installed the 56k modems on the MAX a few months ago, we had the T1's provisioned at D4 and AMI. 56k modem connections were coming in at 28.8k on our local loop, yet customers coming in on Nynex trunks could get 38-48k. Ascend tech support told us that we needed to change the provisioning to ESF and B8ZS. Our old switch wasn't able to support this so we had to wait until a major upgrade to a brand new Siemans EWSD digital switch, which was installed a few weeks ago. We have built the T1 with the ESF and B8ZS, and we are still getting 28.8 or less. On top of that, some customers can't even connect when we switch to 56k modulation. </smaller> <smaller>Keep in mind, we are also testing from inside of the Central Office to avoid any possibility of A/D conversions. Still the same results. </smaller></excerpt> <<<<<<<< You must make sure your T1 is trunk side rather than line side. With line side, 24 pairs leave the switch as analog POTS lines, then get muxed to a T1. 56K modems will not work with this arrangment. So even if you are testing from the C.O., you must make sure the T1 is trunk side. Also the switch digital padding can affect things. >>>> Matt Holdrege <A HREF="http://www.ascend.com">http://www.ascend.com</A> matt@ascend.com ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request@bungi.com To get FAQ'd: <<A HREF="http://www.nealis.net/ascend/faq">http://www.nealis.net/ascend/faq</A>> </PRE> <!--X-MsgBody-End--> <!--X-Follow-Ups--> <!--X-Follow-Ups-End--> <!--X-References--> <HR> <STRONG>References</STRONG>: <UL> <LI><STRONG><A HREF="msg10543.html">(ASCEND) Problems configuring MAX 4004 for 56k</A></STRONG></LI> <UL> <LI><EM>From</EM>: "Wes Parker" <wparker@greenmountains.net></LI> </UL> </UL> <!--X-References-End--> <!--X-BotPNI--> <HR> <UL> <LI>Prev by Date: <STRONG><A HREF="msg10545.html">Re: (ASCEND) Ascend stock</A></STRONG> </LI> <LI>Next by Date: <STRONG><A HREF="msg10544.html">Re: (ASCEND) Ascend stock</A></STRONG> </LI> <LI>Prev by thread: <STRONG><A HREF="msg10543.html">(ASCEND) Problems configuring MAX 4004 for 56k</A></STRONG> </LI> <LI>Next by thread: <STRONG><A HREF="msg10550.html">Re: (ASCEND) Problems configuring MAX 4004 for 56k</A></STRONG> </LI> <LI>Index(es): <UL> <LI><A HREF="maillist.html#10547"><STRONG>Main</STRONG></A></LI> <LI><A HREF="thrd234.html#10547"><STRONG>Thread</STRONG></A></LI> </UL> </LI> </UL> <!--X-BotPNI-End--> <!--X-User-Footer--> <!--X-User-Footer-End--> </BODY> </HTML>