https://business.forums.bt.com/t5/Archive/avaya-7/m-p/75758#M23418 <P>Does any one have problems with their Avaya phone system, since we have had it installed we have the same problem over and over again. we have Isdn two channels, &nbsp;and every month or so system fails to take two calls. So if I am on the phone the other line comes up engaged. very frustating we are loosing customers getting complaints and bt done nothing to eradicate this fault. I am constantly going over the problem again again. this fault started back in October 2014. Amazing that with the technology we have they still cant fix.</P><P>There making me feel like im making this issue up.</P> Wed, 19 Aug 2015 11:39:40 GMT Quinn 2015-08-19T11:39:40Z https://business.forums.bt.com/t5/Archive/avaya-7/m-p/75758#M23418 <P>Does any one have problems with their Avaya phone system, since we have had it installed we have the same problem over and over again. we have Isdn two channels, &nbsp;and every month or so system fails to take two calls. So if I am on the phone the other line comes up engaged. very frustating we are loosing customers getting complaints and bt done nothing to eradicate this fault. I am constantly going over the problem again again. this fault started back in October 2014. Amazing that with the technology we have they still cant fix.</P><P>There making me feel like im making this issue up.</P> Wed, 19 Aug 2015 11:39:40 GMT https://business.forums.bt.com/t5/Archive/avaya-7/m-p/75758#M23418 Quinn 2015-08-19T11:39:40Z