Thanks for reply. Actually i did all those exercise before. First i ask telco to route call flow to 6 E1s only. But the same scenario is there. Then i cut down 2 more E1s, currently only 4 E1s running but the same scenario is there. Also i m using ulaw codec only and there is no transcoding there. also no echo cancellation is there. And main thing is 8 E1s working on the server with the same configuration and with the same telco without any problem. I cant understand what is the problem On Wed, Feb 15, 2012 at 1:05 PM, Krzysztof Drewicz < krzysztofdrewicz at gmail.com> wrote: > > > 2012/2/15 Bharat Lalcheta <bharatlalcheta at gmail.com> > >> >> No i m not getting BAD FCS HDLC abort. In dahdi i m getting following 2 >> messages. >> >> REL on channel (CIC 113) without owner! This message i m getting on >> first server too. >> >> But below message came on the problematic server whenever mtp2 link down >> message come >> >> Duplicate IAM requested on CIC 2 >> >> > > > >> I have 2 servers with dual core 3 GHz dual cpu with 2 GB RAM and having 2 >> * TE410P digium, total 8 port for inbound calling. >> >> >> > >> >> Both server has same setup, 8 E1's with 2 Signalling channels from same >> telco. >> Please guide me to solve above problem. >> >> >> Bharat Lalcheta >> > > > > > Was here on list many times: > > If you have many (like >4 ) E1 connections to ISDN or SS7, simply the PC > architecture won't handle some traffic/calls. > You possibly trans-code some calls like G711 to/from gsm/ilbc/g729/g723 > etc... > Try to change architecture - some redundant setup and more servers, split > TDM hardware to more boxes, and it will work... > As simple as that. If you don't believe, cut down traffic to 4 E1, by not > configuring second card in dahdi/system, then add one E1, wait day or two > etc... you will measure how much your box could handle. > In my experience: recently bought servers go with max 7-8 TDM connections > and not a single one more. > Simply - when 'soft modems' were popular on market - noone tried to put 4 > soft-modems in one box. It was designed to use main CPU for many functions. > Now - you try just to put many 'soft' cards into one box - without any > check up if this architecture it could handle that. > Even 'smart' ss7 cards from dialogic or synway or any other vendors have > some limits with max cards per box... > Maybe - 1st step should be optimize your dialplan? > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7 > -- Bharat Lalcheta -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20120215/59b4ba6d/attachment-0001.htm>
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