The MAX400X base has 64 HDLC channels available to handle "data" sessions. Each ISDN call, and each channel of a nailed session use up one of the available channels. In your case you are *always* using 20 channels for the "20 channels of nailed lines", and then up to 60 additional channels would be needed to support the 2 PRI (E1) with ISDN/data calls. Modem calls do *NOT* use HDLC resources. If you have 44 active data/ISDN calls, then you have used up all available HDLC channels, and the MAX looks to see if you have any additional HDLC slot-cards...hence the messages in debug - since you don't have them. Slot cards is how you add HDLC channels up to 96/128. Kevin ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request@bungi.com To get FAQ'd: <<A HREF="http://www.shore.net/~dreaming/ascend-faq">http://www.shore.net/~dreaming/ascend-faq</A>> or <<A HREF="ftp://ftp.shore.net/members/dreaming/ascend-faq.txt">ftp://ftp.shore.net/members/dreaming/ascend-faq.txt</A>> </PRE> <!--X-MsgBody-End--> <!--X-Follow-Ups--> <HR> <STRONG>Follow-Ups</STRONG>: <UL> <LI><STRONG><A HREF="msg05491.html">Re: (ASCEND) Strange debug errors</A></STRONG></LI> <UL> <LI><EM>From</EM>: Mickey Coggins <mick@fox.iprolink.ch></LI> </UL> </UL> <!--X-Follow-Ups-End--> <!--X-References--> <STRONG>References</STRONG>: <UL> <LI><STRONG><A HREF="msg05458.html">Re: (ASCEND) Strange debug errors</A></STRONG></LI> <UL> <LI><EM>From</EM>: Matt Holdrege <matt@ascend.com></LI> </UL> <LI><STRONG><A HREF="msg05462.html">Re: (ASCEND) Strange debug errors</A></STRONG></LI> <UL> <LI><EM>From</EM>: Mickey Coggins <mick@fox.iprolink.ch></LI> </UL> </UL> <!--X-References-End--> <!--X-BotPNI--> <HR> <UL> <LI>Prev by Date: <STRONG><A HREF="msg05487.html">Re: (ASCEND) Pipeline 50 (w/switch) (fwd)</A></STRONG> </LI> <LI>Next by Date: <STRONG><A HREF="msg05486.html">(ASCEND) MAX 4048</A></STRONG> </LI> <LI>Prev by thread: <STRONG><A HREF="msg05467.html">Re: (ASCEND) Strange debug errors</A></STRONG> </LI> <LI>Next by thread: <STRONG><A HREF="msg05491.html">Re: (ASCEND) Strange debug errors</A></STRONG> </LI> <LI>Index(es): <UL> <LI><A HREF="mail136.html#05485"><STRONG>Main</STRONG></A></LI> <LI><A HREF="thrd38.html#05485"><STRONG>Thread</STRONG></A></LI> </UL> </LI> </UL> <!--X-BotPNI-End--> <!--X-User-Footer--> <!--X-User-Footer-End--> </BODY> </HTML>